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Finding the Fourth Proportional to 644,737.52, 889,720.10 and 358,250.24

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Solution

The fourth proportional to 644,737.52, 889,720.10 and 358,250.24 is: 494,375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,737.52 : 889,720.10 = 358,250.24 : x
  2. Step 2: Convert to fraction form
    644,737.52/889,720.10 = 358,250.24/x
  3. Step 3: Cross multiply
    644,737.52x = 889,720.10 × 358,250.24
  4. Step 4: Simplify right side
    644,737.52x = 318,742,439,357.82
  5. Step 5: Solve for x
    x = 318,742,439,357.82/644,737.52
  6. Step 6: Final answer
    x = 494,375.51

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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.