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Finding the Fourth Proportional to 507,310.87, 756,489.45 and 502,755.31

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Solution

The fourth proportional to 507,310.87, 756,489.45 and 502,755.31 is: 749,696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,310.87 : 756,489.45 = 502,755.31 : x
  2. Step 2: Convert to fraction form
    507,310.87/756,489.45 = 502,755.31/x
  3. Step 3: Cross multiply
    507,310.87x = 756,489.45 × 502,755.31
  4. Step 4: Simplify right side
    507,310.87x = 380,329,085,108.17
  5. Step 5: Solve for x
    x = 380,329,085,108.17/507,310.87
  6. Step 6: Final answer
    x = 749,696.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.