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Finding the Fourth Proportional to 673,658.16, 929,646.36 and 371,850

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Solution

The fourth proportional to 673,658.16, 929,646.36 and 371,850 is: 513,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,658.16 : 929,646.36 = 371,850 : x
  2. Step 2: Convert to fraction form
    673,658.16/929,646.36 = 371,850/x
  3. Step 3: Cross multiply
    673,658.16x = 929,646.36 × 371,850
  4. Step 4: Simplify right side
    673,658.16x = 345,688,998,966
  5. Step 5: Solve for x
    x = 345,688,998,966/673,658.16
  6. Step 6: Final answer
    x = 513,151.95

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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.