Home / 648,082.20-972,123.30-448,627.80

Finding the Fourth Proportional to 648,082.20, 972,123.30 and 448,627.80

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Solution

The fourth proportional to 648,082.20, 972,123.30 and 448,627.80 is: 672,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,082.20 : 972,123.30 = 448,627.80 : x
  2. Step 2: Convert to fraction form
    648,082.20/972,123.30 = 448,627.80/x
  3. Step 3: Cross multiply
    648,082.20x = 972,123.30 × 448,627.80
  4. Step 4: Simplify right side
    648,082.20x = 436,121,537,407.74
  5. Step 5: Solve for x
    x = 436,121,537,407.74/648,082.20
  6. Step 6: Final answer
    x = 672,941.70

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Double scale
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Similar ratio
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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.