Home / 1,225,311.62-1,690,973.15-681,470.33

Finding the Fourth Proportional to 1,225,311.62, 1,690,973.15 and 681,470.33

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Solution

The fourth proportional to 1,225,311.62, 1,690,973.15 and 681,470.33 is: 940,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,311.62 : 1,690,973.15 = 681,470.33 : x
  2. Step 2: Convert to fraction form
    1,225,311.62/1,690,973.15 = 681,470.33/x
  3. Step 3: Cross multiply
    1,225,311.62x = 1,690,973.15 × 681,470.33
  4. Step 4: Simplify right side
    1,225,311.62x = 1,152,348,018,689.42
  5. Step 5: Solve for x
    x = 1,152,348,018,689.42/1,225,311.62
  6. Step 6: Final answer
    x = 940,453.03

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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.