Home / 578,082.40-867,123.60-204,143.20

Finding the Fourth Proportional to 578,082.40, 867,123.60 and 204,143.20

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Solution

The fourth proportional to 578,082.40, 867,123.60 and 204,143.20 is: 306,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,082.40 : 867,123.60 = 204,143.20 : x
  2. Step 2: Convert to fraction form
    578,082.40/867,123.60 = 204,143.20/x
  3. Step 3: Cross multiply
    578,082.40x = 867,123.60 × 204,143.20
  4. Step 4: Simplify right side
    578,082.40x = 177,017,386,499.52
  5. Step 5: Solve for x
    x = 177,017,386,499.52/578,082.40
  6. Step 6: Final answer
    x = 306,214.80

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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.