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Finding the Fourth Proportional to 520,892.02, 785,242.18 and 486,171.94

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Solution

The fourth proportional to 520,892.02, 785,242.18 and 486,171.94 is: 732,901.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,892.02 : 785,242.18 = 486,171.94 : x
  2. Step 2: Convert to fraction form
    520,892.02/785,242.18 = 486,171.94/x
  3. Step 3: Cross multiply
    520,892.02x = 785,242.18 × 486,171.94
  4. Step 4: Simplify right side
    520,892.02x = 381,762,714,020.43
  5. Step 5: Solve for x
    x = 381,762,714,020.43/520,892.02
  6. Step 6: Final answer
    x = 732,901.83

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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.