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Finding the Fourth Proportional to 524,165.67, 721,563.57 and 387,942.92

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Solution

The fourth proportional to 524,165.67, 721,563.57 and 387,942.92 is: 534,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,165.67 : 721,563.57 = 387,942.92 : x
  2. Step 2: Convert to fraction form
    524,165.67/721,563.57 = 387,942.92/x
  3. Step 3: Cross multiply
    524,165.67x = 721,563.57 × 387,942.92
  4. Step 4: Simplify right side
    524,165.67x = 279,925,474,703.61
  5. Step 5: Solve for x
    x = 279,925,474,703.61/524,165.67
  6. Step 6: Final answer
    x = 534,040.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.