Home / 802,131.12-1,107,444.29-516,148.20

Finding the Fourth Proportional to 802,131.12, 1,107,444.29 and 516,148.20

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Solution

The fourth proportional to 802,131.12, 1,107,444.29 and 516,148.20 is: 712,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,131.12 : 1,107,444.29 = 516,148.20 : x
  2. Step 2: Convert to fraction form
    802,131.12/1,107,444.29 = 516,148.20/x
  3. Step 3: Cross multiply
    802,131.12x = 1,107,444.29 × 516,148.20
  4. Step 4: Simplify right side
    802,131.12x = 571,605,374,303.04
  5. Step 5: Solve for x
    x = 571,605,374,303.04/802,131.12
  6. Step 6: Final answer
    x = 712,608.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.