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Finding the Fourth Proportional to 580,287.62, 800,812.68 and 325,654.40

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Solution

The fourth proportional to 580,287.62, 800,812.68 and 325,654.40 is: 449,411.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,287.62 : 800,812.68 = 325,654.40 : x
  2. Step 2: Convert to fraction form
    580,287.62/800,812.68 = 325,654.40/x
  3. Step 3: Cross multiply
    580,287.62x = 800,812.68 × 325,654.40
  4. Step 4: Simplify right side
    580,287.62x = 260,788,172,817.79
  5. Step 5: Solve for x
    x = 260,788,172,817.79/580,287.62
  6. Step 6: Final answer
    x = 449,411.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.