Home / 869,498.28-1,199,892.42-487,523.88

Finding the Fourth Proportional to 869,498.28, 1,199,892.42 and 487,523.88

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Solution

The fourth proportional to 869,498.28, 1,199,892.42 and 487,523.88 is: 672,774.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,498.28 : 1,199,892.42 = 487,523.88 : x
  2. Step 2: Convert to fraction form
    869,498.28/1,199,892.42 = 487,523.88/x
  3. Step 3: Cross multiply
    869,498.28x = 1,199,892.42 × 487,523.88
  4. Step 4: Simplify right side
    869,498.28x = 584,976,208,180.99
  5. Step 5: Solve for x
    x = 584,976,208,180.99/869,498.28
  6. Step 6: Final answer
    x = 672,774.43

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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.