Home / 1,225,323.80-1,690,848.84-681,460.64

Finding the Fourth Proportional to 1,225,323.80, 1,690,848.84 and 681,460.64

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Solution

The fourth proportional to 1,225,323.80, 1,690,848.84 and 681,460.64 is: 940,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,323.80 : 1,690,848.84 = 681,460.64 : x
  2. Step 2: Convert to fraction form
    1,225,323.80/1,690,848.84 = 681,460.64/x
  3. Step 3: Cross multiply
    1,225,323.80x = 1,690,848.84 × 681,460.64
  4. Step 4: Simplify right side
    1,225,323.80x = 1,152,246,932,649.66
  5. Step 5: Solve for x
    x = 1,152,246,932,649.66/1,225,323.80
  6. Step 6: Final answer
    x = 940,361.18

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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.