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Finding the Fourth Proportional to 988,253, 1,482,248.46 and 278,336.84

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Solution

The fourth proportional to 988,253, 1,482,248.46 and 278,336.84 is: 417,468.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,253 : 1,482,248.46 = 278,336.84 : x
  2. Step 2: Convert to fraction form
    988,253/1,482,248.46 = 278,336.84/x
  3. Step 3: Cross multiply
    988,253x = 1,482,248.46 × 278,336.84
  4. Step 4: Simplify right side
    988,253x = 412,564,352,451.27
  5. Step 5: Solve for x
    x = 412,564,352,451.27/988,253
  6. Step 6: Final answer
    x = 417,468.35

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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.