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Finding the Fourth Proportional to 904,098, 1,247,713.56 and 501,690

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Solution

The fourth proportional to 904,098, 1,247,713.56 and 501,690 is: 692,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,098 : 1,247,713.56 = 501,690 : x
  2. Step 2: Convert to fraction form
    904,098/1,247,713.56 = 501,690/x
  3. Step 3: Cross multiply
    904,098x = 1,247,713.56 × 501,690
  4. Step 4: Simplify right side
    904,098x = 625,965,415,916.40
  5. Step 5: Solve for x
    x = 625,965,415,916.40/904,098
  6. Step 6: Final answer
    x = 692,364.56

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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.