Home / 709,788.04-979,593.42-403,938.80

Finding the Fourth Proportional to 709,788.04, 979,593.42 and 403,938.80

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Solution

The fourth proportional to 709,788.04, 979,593.42 and 403,938.80 is: 557,484.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,788.04 : 979,593.42 = 403,938.80 : x
  2. Step 2: Convert to fraction form
    709,788.04/979,593.42 = 403,938.80/x
  3. Step 3: Cross multiply
    709,788.04x = 979,593.42 × 403,938.80
  4. Step 4: Simplify right side
    709,788.04x = 395,695,790,562.70
  5. Step 5: Solve for x
    x = 395,695,790,562.70/709,788.04
  6. Step 6: Final answer
    x = 557,484.44

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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.