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Finding the Fourth Proportional to 503,678.39, 755,599.61 and 148,728.29

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Solution

The fourth proportional to 503,678.39, 755,599.61 and 148,728.29 is: 223,116.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,678.39 : 755,599.61 = 148,728.29 : x
  2. Step 2: Convert to fraction form
    503,678.39/755,599.61 = 148,728.29/x
  3. Step 3: Cross multiply
    503,678.39x = 755,599.61 × 148,728.29
  4. Step 4: Simplify right side
    503,678.39x = 112,379,037,919.97
  5. Step 5: Solve for x
    x = 112,379,037,919.97/503,678.39
  6. Step 6: Final answer
    x = 223,116.66

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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.