Home / 689,731.20-1,033,981.20-268,909.20

Finding the Fourth Proportional to 689,731.20, 1,033,981.20 and 268,909.20

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Solution

The fourth proportional to 689,731.20, 1,033,981.20 and 268,909.20 is: 403,123.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,731.20 : 1,033,981.20 = 268,909.20 : x
  2. Step 2: Convert to fraction form
    689,731.20/1,033,981.20 = 268,909.20/x
  3. Step 3: Cross multiply
    689,731.20x = 1,033,981.20 × 268,909.20
  4. Step 4: Simplify right side
    689,731.20x = 278,047,057,307.04
  5. Step 5: Solve for x
    x = 278,047,057,307.04/689,731.20
  6. Step 6: Final answer
    x = 403,123.79

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1.5x scale

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.