Home / 1,225,200.96-1,690,647.89-681,248.97

Finding the Fourth Proportional to 1,225,200.96, 1,690,647.89 and 681,248.97

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Solution

The fourth proportional to 1,225,200.96, 1,690,647.89 and 681,248.97 is: 940,051.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,200.96 : 1,690,647.89 = 681,248.97 : x
  2. Step 2: Convert to fraction form
    1,225,200.96/1,690,647.89 = 681,248.97/x
  3. Step 3: Cross multiply
    1,225,200.96x = 1,690,647.89 × 681,248.97
  4. Step 4: Simplify right side
    1,225,200.96x = 1,151,752,130,288.93
  5. Step 5: Solve for x
    x = 1,151,752,130,288.93/1,225,200.96
  6. Step 6: Final answer
    x = 940,051.61

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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.