Home / 1,645,187.20-2,467,780.80-981,635.20

Finding the Fourth Proportional to 1,645,187.20, 2,467,780.80 and 981,635.20

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Solution

The fourth proportional to 1,645,187.20, 2,467,780.80 and 981,635.20 is: 1,472,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,187.20 : 2,467,780.80 = 981,635.20 : x
  2. Step 2: Convert to fraction form
    1,645,187.20/2,467,780.80 = 981,635.20/x
  3. Step 3: Cross multiply
    1,645,187.20x = 2,467,780.80 × 981,635.20
  4. Step 4: Simplify right side
    1,645,187.20x = 2,422,460,499,164.16
  5. Step 5: Solve for x
    x = 2,422,460,499,164.16/1,645,187.20
  6. Step 6: Final answer
    x = 1,472,452.80

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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.