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Finding the Fourth Proportional to 610,711.56, 915,697.96 and 273,690

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Solution

The fourth proportional to 610,711.56, 915,697.96 and 273,690 is: 410,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,711.56 : 915,697.96 = 273,690 : x
  2. Step 2: Convert to fraction form
    610,711.56/915,697.96 = 273,690/x
  3. Step 3: Cross multiply
    610,711.56x = 915,697.96 × 273,690
  4. Step 4: Simplify right side
    610,711.56x = 250,617,374,672.40
  5. Step 5: Solve for x
    x = 250,617,374,672.40/610,711.56
  6. Step 6: Final answer
    x = 410,369.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.