Home / 486,082.30-729,123.45-170,506.30

Finding the Fourth Proportional to 486,082.30, 729,123.45 and 170,506.30

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Solution

The fourth proportional to 486,082.30, 729,123.45 and 170,506.30 is: 255,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,082.30 : 729,123.45 = 170,506.30 : x
  2. Step 2: Convert to fraction form
    486,082.30/729,123.45 = 170,506.30/x
  3. Step 3: Cross multiply
    486,082.30x = 729,123.45 × 170,506.30
  4. Step 4: Simplify right side
    486,082.30x = 124,320,141,702.74
  5. Step 5: Solve for x
    x = 124,320,141,702.74/486,082.30
  6. Step 6: Final answer
    x = 255,759.45

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Double scale
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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.