Home / 1,251,909.92-1,877,969.92-399,102.72

Finding the Fourth Proportional to 1,251,909.92, 1,877,969.92 and 399,102.72

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Solution

The fourth proportional to 1,251,909.92, 1,877,969.92 and 399,102.72 is: 598,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,909.92 : 1,877,969.92 = 399,102.72 : x
  2. Step 2: Convert to fraction form
    1,251,909.92/1,877,969.92 = 399,102.72/x
  3. Step 3: Cross multiply
    1,251,909.92x = 1,877,969.92 × 399,102.72
  4. Step 4: Simplify right side
    1,251,909.92x = 749,502,903,150.18
  5. Step 5: Solve for x
    x = 749,502,903,150.18/1,251,909.92
  6. Step 6: Final answer
    x = 598,687.57

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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.