Home / 1,251,911.92-1,877,972.92-399,104.72

Finding the Fourth Proportional to 1,251,911.92, 1,877,972.92 and 399,104.72

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Solution

The fourth proportional to 1,251,911.92, 1,877,972.92 and 399,104.72 is: 598,690.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,911.92 : 1,877,972.92 = 399,104.72 : x
  2. Step 2: Convert to fraction form
    1,251,911.92/1,877,972.92 = 399,104.72/x
  3. Step 3: Cross multiply
    1,251,911.92x = 1,877,972.92 × 399,104.72
  4. Step 4: Simplify right side
    1,251,911.92x = 749,507,856,404.18
  5. Step 5: Solve for x
    x = 749,507,856,404.18/1,251,911.92
  6. Step 6: Final answer
    x = 598,690.57

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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.