Home / 890,680.13-1,229,216.33-488,349.89

Finding the Fourth Proportional to 890,680.13, 1,229,216.33 and 488,349.89

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Solution

The fourth proportional to 890,680.13, 1,229,216.33 and 488,349.89 is: 673,965.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,680.13 : 1,229,216.33 = 488,349.89 : x
  2. Step 2: Convert to fraction form
    890,680.13/1,229,216.33 = 488,349.89/x
  3. Step 3: Cross multiply
    890,680.13x = 1,229,216.33 × 488,349.89
  4. Step 4: Simplify right side
    890,680.13x = 600,287,654,616.50
  5. Step 5: Solve for x
    x = 600,287,654,616.50/890,680.13
  6. Step 6: Final answer
    x = 673,965.48

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Double scale
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1.5x scale

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.