Home / 773,389.20-1,067,658.12-487,349.04

Finding the Fourth Proportional to 773,389.20, 1,067,658.12 and 487,349.04

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Solution

The fourth proportional to 773,389.20, 1,067,658.12 and 487,349.04 is: 672,781.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,389.20 : 1,067,658.12 = 487,349.04 : x
  2. Step 2: Convert to fraction form
    773,389.20/1,067,658.12 = 487,349.04/x
  3. Step 3: Cross multiply
    773,389.20x = 1,067,658.12 × 487,349.04
  4. Step 4: Simplify right side
    773,389.20x = 520,322,159,830.21
  5. Step 5: Solve for x
    x = 520,322,159,830.21/773,389.20
  6. Step 6: Final answer
    x = 672,781.78

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1.5x scale

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.