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Finding the Fourth Proportional to 655,065.46, 981,023.55 and 373,729.78

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Solution

The fourth proportional to 655,065.46, 981,023.55 and 373,729.78 is: 559,696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,065.46 : 981,023.55 = 373,729.78 : x
  2. Step 2: Convert to fraction form
    655,065.46/981,023.55 = 373,729.78/x
  3. Step 3: Cross multiply
    655,065.46x = 981,023.55 × 373,729.78
  4. Step 4: Simplify right side
    655,065.46x = 366,637,715,516.32
  5. Step 5: Solve for x
    x = 366,637,715,516.32/655,065.46
  6. Step 6: Final answer
    x = 559,696.30

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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.