Home / 744,034.20-1,116,051.30-520,085.40

Finding the Fourth Proportional to 744,034.20, 1,116,051.30 and 520,085.40

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Solution

The fourth proportional to 744,034.20, 1,116,051.30 and 520,085.40 is: 780,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,034.20 : 1,116,051.30 = 520,085.40 : x
  2. Step 2: Convert to fraction form
    744,034.20/1,116,051.30 = 520,085.40/x
  3. Step 3: Cross multiply
    744,034.20x = 1,116,051.30 × 520,085.40
  4. Step 4: Simplify right side
    744,034.20x = 580,441,986,781.02
  5. Step 5: Solve for x
    x = 580,441,986,781.02/744,034.20
  6. Step 6: Final answer
    x = 780,128.10

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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.