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Finding the Fourth Proportional to 524,860.20, 787,290.30 and 338,082.60

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Solution

The fourth proportional to 524,860.20, 787,290.30 and 338,082.60 is: 507,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,860.20 : 787,290.30 = 338,082.60 : x
  2. Step 2: Convert to fraction form
    524,860.20/787,290.30 = 338,082.60/x
  3. Step 3: Cross multiply
    524,860.20x = 787,290.30 × 338,082.60
  4. Step 4: Simplify right side
    524,860.20x = 266,169,151,578.78
  5. Step 5: Solve for x
    x = 266,169,151,578.78/524,860.20
  6. Step 6: Final answer
    x = 507,123.90

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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.