Home / 943,789.68-1,302,714.36-642,158.64

Finding the Fourth Proportional to 943,789.68, 1,302,714.36 and 642,158.64

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Solution

The fourth proportional to 943,789.68, 1,302,714.36 and 642,158.64 is: 886,372.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,789.68 : 1,302,714.36 = 642,158.64 : x
  2. Step 2: Convert to fraction form
    943,789.68/1,302,714.36 = 642,158.64/x
  3. Step 3: Cross multiply
    943,789.68x = 1,302,714.36 × 642,158.64
  4. Step 4: Simplify right side
    943,789.68x = 836,549,281,726.07
  5. Step 5: Solve for x
    x = 836,549,281,726.07/943,789.68
  6. Step 6: Final answer
    x = 886,372.57

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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.