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Finding the Fourth Proportional to 637,539.66, 955,591.83 and 278,013.06

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Solution

The fourth proportional to 637,539.66, 955,591.83 and 278,013.06 is: 416,706.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,539.66 : 955,591.83 = 278,013.06 : x
  2. Step 2: Convert to fraction form
    637,539.66/955,591.83 = 278,013.06/x
  3. Step 3: Cross multiply
    637,539.66x = 955,591.83 × 278,013.06
  4. Step 4: Simplify right side
    637,539.66x = 265,667,008,769.30
  5. Step 5: Solve for x
    x = 265,667,008,769.30/637,539.66
  6. Step 6: Final answer
    x = 416,706.64

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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.