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Finding the Fourth Proportional to 855,500.64, 1,282,991.76 and 356,748

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Solution

The fourth proportional to 855,500.64, 1,282,991.76 and 356,748 is: 535,013.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,500.64 : 1,282,991.76 = 356,748 : x
  2. Step 2: Convert to fraction form
    855,500.64/1,282,991.76 = 356,748/x
  3. Step 3: Cross multiply
    855,500.64x = 1,282,991.76 × 356,748
  4. Step 4: Simplify right side
    855,500.64x = 457,704,744,396.48
  5. Step 5: Solve for x
    x = 457,704,744,396.48/855,500.64
  6. Step 6: Final answer
    x = 535,013.91

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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.