Home / 766,821.12-1,057,962.24-464,904.96

Finding the Fourth Proportional to 766,821.12, 1,057,962.24 and 464,904.96

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Solution

The fourth proportional to 766,821.12, 1,057,962.24 and 464,904.96 is: 641,416.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,821.12 : 1,057,962.24 = 464,904.96 : x
  2. Step 2: Convert to fraction form
    766,821.12/1,057,962.24 = 464,904.96/x
  3. Step 3: Cross multiply
    766,821.12x = 1,057,962.24 × 464,904.96
  4. Step 4: Simplify right side
    766,821.12x = 491,851,892,868.71
  5. Step 5: Solve for x
    x = 491,851,892,868.71/766,821.12
  6. Step 6: Final answer
    x = 641,416.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.