Home / 823,643.10-1,234,881.45-318,008.70

Finding the Fourth Proportional to 823,643.10, 1,234,881.45 and 318,008.70

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Solution

The fourth proportional to 823,643.10, 1,234,881.45 and 318,008.70 is: 476,787.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,643.10 : 1,234,881.45 = 318,008.70 : x
  2. Step 2: Convert to fraction form
    823,643.10/1,234,881.45 = 318,008.70/x
  3. Step 3: Cross multiply
    823,643.10x = 1,234,881.45 × 318,008.70
  4. Step 4: Simplify right side
    823,643.10x = 392,703,044,568.62
  5. Step 5: Solve for x
    x = 392,703,044,568.62/823,643.10
  6. Step 6: Final answer
    x = 476,787.88

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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.