Home / 1,225,297.86-1,690,954.18-681,456.58

Finding the Fourth Proportional to 1,225,297.86, 1,690,954.18 and 681,456.58

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Solution

The fourth proportional to 1,225,297.86, 1,690,954.18 and 681,456.58 is: 940,434.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,297.86 : 1,690,954.18 = 681,456.58 : x
  2. Step 2: Convert to fraction form
    1,225,297.86/1,690,954.18 = 681,456.58/x
  3. Step 3: Cross multiply
    1,225,297.86x = 1,690,954.18 × 681,456.58
  4. Step 4: Simplify right side
    1,225,297.86x = 1,152,311,852,439.50
  5. Step 5: Solve for x
    x = 1,152,311,852,439.50/1,225,297.86
  6. Step 6: Final answer
    x = 940,434.07

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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.