Home / 1,395,128-2,092,711.68-397,856

Finding the Fourth Proportional to 1,395,128, 2,092,711.68 and 397,856

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Solution

The fourth proportional to 1,395,128, 2,092,711.68 and 397,856 is: 596,789.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,128 : 2,092,711.68 = 397,856 : x
  2. Step 2: Convert to fraction form
    1,395,128/2,092,711.68 = 397,856/x
  3. Step 3: Cross multiply
    1,395,128x = 2,092,711.68 × 397,856
  4. Step 4: Simplify right side
    1,395,128x = 832,597,898,158.08
  5. Step 5: Solve for x
    x = 832,597,898,158.08/1,395,128
  6. Step 6: Final answer
    x = 596,789.61

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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.