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Finding the Fourth Proportional to 491,282.20, 736,923.30 and 485,061.40

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Solution

The fourth proportional to 491,282.20, 736,923.30 and 485,061.40 is: 727,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,282.20 : 736,923.30 = 485,061.40 : x
  2. Step 2: Convert to fraction form
    491,282.20/736,923.30 = 485,061.40/x
  3. Step 3: Cross multiply
    491,282.20x = 736,923.30 × 485,061.40
  4. Step 4: Simplify right side
    491,282.20x = 357,453,047,590.62
  5. Step 5: Solve for x
    x = 357,453,047,590.62/491,282.20
  6. Step 6: Final answer
    x = 727,592.10

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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.