Home / 1,512,077.40-2,268,116.10-390,146.40

Finding the Fourth Proportional to 1,512,077.40, 2,268,116.10 and 390,146.40

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Solution

The fourth proportional to 1,512,077.40, 2,268,116.10 and 390,146.40 is: 585,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,077.40 : 2,268,116.10 = 390,146.40 : x
  2. Step 2: Convert to fraction form
    1,512,077.40/2,268,116.10 = 390,146.40/x
  3. Step 3: Cross multiply
    1,512,077.40x = 2,268,116.10 × 390,146.40
  4. Step 4: Simplify right side
    1,512,077.40x = 884,897,331,197.04
  5. Step 5: Solve for x
    x = 884,897,331,197.04/1,512,077.40
  6. Step 6: Final answer
    x = 585,219.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.