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Finding the Fourth Proportional to 488,358.46, 732,657.57 and 394,439.77

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Solution

The fourth proportional to 488,358.46, 732,657.57 and 394,439.77 is: 591,756.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,358.46 : 732,657.57 = 394,439.77 : x
  2. Step 2: Convert to fraction form
    488,358.46/732,657.57 = 394,439.77/x
  3. Step 3: Cross multiply
    488,358.46x = 732,657.57 × 394,439.77
  4. Step 4: Simplify right side
    488,358.46x = 288,989,281,567.92
  5. Step 5: Solve for x
    x = 288,989,281,567.92/488,358.46
  6. Step 6: Final answer
    x = 591,756.48

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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.