Home / 706,733.90-1,057,425.75-418,700.21

Finding the Fourth Proportional to 706,733.90, 1,057,425.75 and 418,700.21

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Solution

The fourth proportional to 706,733.90, 1,057,425.75 and 418,700.21 is: 626,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,733.90 : 1,057,425.75 = 418,700.21 : x
  2. Step 2: Convert to fraction form
    706,733.90/1,057,425.75 = 418,700.21/x
  3. Step 3: Cross multiply
    706,733.90x = 1,057,425.75 × 418,700.21
  4. Step 4: Simplify right side
    706,733.90x = 442,744,386,227.97
  5. Step 5: Solve for x
    x = 442,744,386,227.97/706,733.90
  6. Step 6: Final answer
    x = 626,465.48

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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.