Home / 908,642.12-1,253,934.68-500,758.87

Finding the Fourth Proportional to 908,642.12, 1,253,934.68 and 500,758.87

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Solution

The fourth proportional to 908,642.12, 1,253,934.68 and 500,758.87 is: 691,051.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,642.12 : 1,253,934.68 = 500,758.87 : x
  2. Step 2: Convert to fraction form
    908,642.12/1,253,934.68 = 500,758.87/x
  3. Step 3: Cross multiply
    908,642.12x = 1,253,934.68 × 500,758.87
  4. Step 4: Simplify right side
    908,642.12x = 627,918,911,886.47
  5. Step 5: Solve for x
    x = 627,918,911,886.47/908,642.12
  6. Step 6: Final answer
    x = 691,051.96

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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.