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Finding the Fourth Proportional to 634,309.83, 874,500.76 and 503,920.13

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Solution

The fourth proportional to 634,309.83, 874,500.76 and 503,920.13 is: 694,737.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,309.83 : 874,500.76 = 503,920.13 : x
  2. Step 2: Convert to fraction form
    634,309.83/874,500.76 = 503,920.13/x
  3. Step 3: Cross multiply
    634,309.83x = 874,500.76 × 503,920.13
  4. Step 4: Simplify right side
    634,309.83x = 440,678,536,664.30
  5. Step 5: Solve for x
    x = 440,678,536,664.30/634,309.83
  6. Step 6: Final answer
    x = 694,737.04

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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.