Home / 528,517.12-729,354.12-302,167.36

Finding the Fourth Proportional to 528,517.12, 729,354.12 and 302,167.36

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Solution

The fourth proportional to 528,517.12, 729,354.12 and 302,167.36 is: 416,991.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,517.12 : 729,354.12 = 302,167.36 : x
  2. Step 2: Convert to fraction form
    528,517.12/729,354.12 = 302,167.36/x
  3. Step 3: Cross multiply
    528,517.12x = 729,354.12 × 302,167.36
  4. Step 4: Simplify right side
    528,517.12x = 220,387,008,945.52
  5. Step 5: Solve for x
    x = 220,387,008,945.52/528,517.12
  6. Step 6: Final answer
    x = 416,991.24

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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.