Home / 1,078,422.12-1,488,397.01-642,892.91

Finding the Fourth Proportional to 1,078,422.12, 1,488,397.01 and 642,892.91

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Solution

The fourth proportional to 1,078,422.12, 1,488,397.01 and 642,892.91 is: 887,296.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,422.12 : 1,488,397.01 = 642,892.91 : x
  2. Step 2: Convert to fraction form
    1,078,422.12/1,488,397.01 = 642,892.91/x
  3. Step 3: Cross multiply
    1,078,422.12x = 1,488,397.01 × 642,892.91
  4. Step 4: Simplify right side
    1,078,422.12x = 956,879,874,337.75
  5. Step 5: Solve for x
    x = 956,879,874,337.75/1,078,422.12
  6. Step 6: Final answer
    x = 887,296.22

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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.