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Finding the Fourth Proportional to 605,132.60, 905,730.60 and 471,288.20

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Solution

The fourth proportional to 605,132.60, 905,730.60 and 471,288.20 is: 705,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,132.60 : 905,730.60 = 471,288.20 : x
  2. Step 2: Convert to fraction form
    605,132.60/905,730.60 = 471,288.20/x
  3. Step 3: Cross multiply
    605,132.60x = 905,730.60 × 471,288.20
  4. Step 4: Simplify right side
    605,132.60x = 426,860,144,158.92
  5. Step 5: Solve for x
    x = 426,860,144,158.92/605,132.60
  6. Step 6: Final answer
    x = 705,399.35

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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.