Home / 677,121.12-934,493.96-386,776.06

Finding the Fourth Proportional to 677,121.12, 934,493.96 and 386,776.06

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Solution

The fourth proportional to 677,121.12, 934,493.96 and 386,776.06 is: 533,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,121.12 : 934,493.96 = 386,776.06 : x
  2. Step 2: Convert to fraction form
    677,121.12/934,493.96 = 386,776.06/x
  3. Step 3: Cross multiply
    677,121.12x = 934,493.96 × 386,776.06
  4. Step 4: Simplify right side
    677,121.12x = 361,439,895,829.83
  5. Step 5: Solve for x
    x = 361,439,895,829.83/677,121.12
  6. Step 6: Final answer
    x = 533,789.13

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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.