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Finding the Fourth Proportional to 559,757.12, 839,037 and 319,353

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Solution

The fourth proportional to 559,757.12, 839,037 and 319,353 is: 478,687.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,757.12 : 839,037 = 319,353 : x
  2. Step 2: Convert to fraction form
    559,757.12/839,037 = 319,353/x
  3. Step 3: Cross multiply
    559,757.12x = 839,037 × 319,353
  4. Step 4: Simplify right side
    559,757.12x = 267,948,983,061
  5. Step 5: Solve for x
    x = 267,948,983,061/559,757.12
  6. Step 6: Final answer
    x = 478,687.94

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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.