Home / 744,203.30-1,116,564.15-323,780.90

Finding the Fourth Proportional to 744,203.30, 1,116,564.15 and 323,780.90

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Solution

The fourth proportional to 744,203.30, 1,116,564.15 and 323,780.90 is: 485,784.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,203.30 : 1,116,564.15 = 323,780.90 : x
  2. Step 2: Convert to fraction form
    744,203.30/1,116,564.15 = 323,780.90/x
  3. Step 3: Cross multiply
    744,203.30x = 1,116,564.15 × 323,780.90
  4. Step 4: Simplify right side
    744,203.30x = 361,522,145,394.74
  5. Step 5: Solve for x
    x = 361,522,145,394.74/744,203.30
  6. Step 6: Final answer
    x = 485,784.12

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Double scale
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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.