Home / 1,399,439.33-1,931,822.15-940,819.90

Finding the Fourth Proportional to 1,399,439.33, 1,931,822.15 and 940,819.90

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Solution

The fourth proportional to 1,399,439.33, 1,931,822.15 and 940,819.90 is: 1,298,732.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,439.33 : 1,931,822.15 = 940,819.90 : x
  2. Step 2: Convert to fraction form
    1,399,439.33/1,931,822.15 = 940,819.90/x
  3. Step 3: Cross multiply
    1,399,439.33x = 1,931,822.15 × 940,819.90
  4. Step 4: Simplify right side
    1,399,439.33x = 1,817,496,721,980.79
  5. Step 5: Solve for x
    x = 1,817,496,721,980.79/1,399,439.33
  6. Step 6: Final answer
    x = 1,298,732.06

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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.