Home / 1,225,308.67-1,690,796.53-681,356.61

Finding the Fourth Proportional to 1,225,308.67, 1,690,796.53 and 681,356.61

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Solution

The fourth proportional to 1,225,308.67, 1,690,796.53 and 681,356.61 is: 940,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,308.67 : 1,690,796.53 = 681,356.61 : x
  2. Step 2: Convert to fraction form
    1,225,308.67/1,690,796.53 = 681,356.61/x
  3. Step 3: Cross multiply
    1,225,308.67x = 1,690,796.53 × 681,356.61
  4. Step 4: Simplify right side
    1,225,308.67x = 1,152,035,392,732.26
  5. Step 5: Solve for x
    x = 1,152,035,392,732.26/1,225,308.67
  6. Step 6: Final answer
    x = 940,200.15

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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.