Home / 1,512,078.15-2,268,117.24-390,147.15

Finding the Fourth Proportional to 1,512,078.15, 2,268,117.24 and 390,147.15

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Solution

The fourth proportional to 1,512,078.15, 2,268,117.24 and 390,147.15 is: 585,220.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,078.15 : 2,268,117.24 = 390,147.15 : x
  2. Step 2: Convert to fraction form
    1,512,078.15/2,268,117.24 = 390,147.15/x
  3. Step 3: Cross multiply
    1,512,078.15x = 2,268,117.24 × 390,147.15
  4. Step 4: Simplify right side
    1,512,078.15x = 884,899,477,051.87
  5. Step 5: Solve for x
    x = 884,899,477,051.87/1,512,078.15
  6. Step 6: Final answer
    x = 585,220.73

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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.