Home / 754,459.40-1,131,689.10-577,312.40

Finding the Fourth Proportional to 754,459.40, 1,131,689.10 and 577,312.40

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Solution

The fourth proportional to 754,459.40, 1,131,689.10 and 577,312.40 is: 865,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,459.40 : 1,131,689.10 = 577,312.40 : x
  2. Step 2: Convert to fraction form
    754,459.40/1,131,689.10 = 577,312.40/x
  3. Step 3: Cross multiply
    754,459.40x = 1,131,689.10 × 577,312.40
  4. Step 4: Simplify right side
    754,459.40x = 653,338,150,374.84
  5. Step 5: Solve for x
    x = 653,338,150,374.84/754,459.40
  6. Step 6: Final answer
    x = 865,968.60

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Double scale
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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.