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Finding the Fourth Proportional to 608,856.80, 915,034.80 and 531,874.40

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Solution

The fourth proportional to 608,856.80, 915,034.80 and 531,874.40 is: 799,339.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,856.80 : 915,034.80 = 531,874.40 : x
  2. Step 2: Convert to fraction form
    608,856.80/915,034.80 = 531,874.40/x
  3. Step 3: Cross multiply
    608,856.80x = 915,034.80 × 531,874.40
  4. Step 4: Simplify right side
    608,856.80x = 486,683,585,229.12
  5. Step 5: Solve for x
    x = 486,683,585,229.12/608,856.80
  6. Step 6: Final answer
    x = 799,339.98

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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.