Home / 2,160,406.96-2,981,270.28-1,242,566.80

Finding the Fourth Proportional to 2,160,406.96, 2,981,270.28 and 1,242,566.80

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Solution

The fourth proportional to 2,160,406.96, 2,981,270.28 and 1,242,566.80 is: 1,714,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,406.96 : 2,981,270.28 = 1,242,566.80 : x
  2. Step 2: Convert to fraction form
    2,160,406.96/2,981,270.28 = 1,242,566.80/x
  3. Step 3: Cross multiply
    2,160,406.96x = 2,981,270.28 × 1,242,566.80
  4. Step 4: Simplify right side
    2,160,406.96x = 3,704,427,471,754.70
  5. Step 5: Solve for x
    x = 3,704,427,471,754.70/2,160,406.96
  6. Step 6: Final answer
    x = 1,714,689.66

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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.