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Finding the Fourth Proportional to 502,538.48, 693,664.72 and 321,737.37

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Solution

The fourth proportional to 502,538.48, 693,664.72 and 321,737.37 is: 444,101.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,538.48 : 693,664.72 = 321,737.37 : x
  2. Step 2: Convert to fraction form
    502,538.48/693,664.72 = 321,737.37/x
  3. Step 3: Cross multiply
    502,538.48x = 693,664.72 × 321,737.37
  4. Step 4: Simplify right side
    502,538.48x = 223,177,859,206.26
  5. Step 5: Solve for x
    x = 223,177,859,206.26/502,538.48
  6. Step 6: Final answer
    x = 444,101.04

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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.