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Finding the Fourth Proportional to 503,715.48, 695,273.92 and 402,446.04

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Solution

The fourth proportional to 503,715.48, 695,273.92 and 402,446.04 is: 555,492.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,715.48 : 695,273.92 = 402,446.04 : x
  2. Step 2: Convert to fraction form
    503,715.48/695,273.92 = 402,446.04/x
  3. Step 3: Cross multiply
    503,715.48x = 695,273.92 × 402,446.04
  4. Step 4: Simplify right side
    503,715.48x = 279,810,235,819.28
  5. Step 5: Solve for x
    x = 279,810,235,819.28/503,715.48
  6. Step 6: Final answer
    x = 555,492.63

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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.