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Finding the Fourth Proportional to 608,859.80, 915,039.30 and 531,877.40

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Solution

The fourth proportional to 608,859.80, 915,039.30 and 531,877.40 is: 799,344.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,859.80 : 915,039.30 = 531,877.40 : x
  2. Step 2: Convert to fraction form
    608,859.80/915,039.30 = 531,877.40/x
  3. Step 3: Cross multiply
    608,859.80x = 915,039.30 × 531,877.40
  4. Step 4: Simplify right side
    608,859.80x = 486,688,723,781.82
  5. Step 5: Solve for x
    x = 486,688,723,781.82/608,859.80
  6. Step 6: Final answer
    x = 799,344.49

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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.