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Finding the Fourth Proportional to 520,885.38, 785,232.20 and 486,165.27

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Solution

The fourth proportional to 520,885.38, 785,232.20 and 486,165.27 is: 732,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,885.38 : 785,232.20 = 486,165.27 : x
  2. Step 2: Convert to fraction form
    520,885.38/785,232.20 = 486,165.27/x
  3. Step 3: Cross multiply
    520,885.38x = 785,232.20 × 486,165.27
  4. Step 4: Simplify right side
    520,885.38x = 381,752,624,525.69
  5. Step 5: Solve for x
    x = 381,752,624,525.69/520,885.38
  6. Step 6: Final answer
    x = 732,891.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.