Home / 486,721.80-730,082.70-352,974.60

Finding the Fourth Proportional to 486,721.80, 730,082.70 and 352,974.60

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Solution

The fourth proportional to 486,721.80, 730,082.70 and 352,974.60 is: 529,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,721.80 : 730,082.70 = 352,974.60 : x
  2. Step 2: Convert to fraction form
    486,721.80/730,082.70 = 352,974.60/x
  3. Step 3: Cross multiply
    486,721.80x = 730,082.70 × 352,974.60
  4. Step 4: Simplify right side
    486,721.80x = 257,700,648,999.42
  5. Step 5: Solve for x
    x = 257,700,648,999.42/486,721.80
  6. Step 6: Final answer
    x = 529,461.90

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Similar ratio
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1.5x scale

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.