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Finding the Fourth Proportional to 572,350.73, 858,544.36 and 287,885.92

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Solution

The fourth proportional to 572,350.73, 858,544.36 and 287,885.92 is: 431,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,350.73 : 858,544.36 = 287,885.92 : x
  2. Step 2: Convert to fraction form
    572,350.73/858,544.36 = 287,885.92/x
  3. Step 3: Cross multiply
    572,350.73x = 858,544.36 × 287,885.92
  4. Step 4: Simplify right side
    572,350.73x = 247,162,835,717.12
  5. Step 5: Solve for x
    x = 247,162,835,717.12/572,350.73
  6. Step 6: Final answer
    x = 431,838.07

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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.