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Finding the Fourth Proportional to 634,310.59, 874,501.80 and 503,920.87

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Solution

The fourth proportional to 634,310.59, 874,501.80 and 503,920.87 is: 694,738.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,310.59 : 874,501.80 = 503,920.87 : x
  2. Step 2: Convert to fraction form
    634,310.59/874,501.80 = 503,920.87/x
  3. Step 3: Cross multiply
    634,310.59x = 874,501.80 × 503,920.87
  4. Step 4: Simplify right side
    634,310.59x = 440,679,707,872.57
  5. Step 5: Solve for x
    x = 440,679,707,872.57/634,310.59
  6. Step 6: Final answer
    x = 694,738.06

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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.