Home / 1,243,839.32-1,865,752.62-485,757.76

Finding the Fourth Proportional to 1,243,839.32, 1,865,752.62 and 485,757.76

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Solution

The fourth proportional to 1,243,839.32, 1,865,752.62 and 485,757.76 is: 728,634.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,839.32 : 1,865,752.62 = 485,757.76 : x
  2. Step 2: Convert to fraction form
    1,243,839.32/1,865,752.62 = 485,757.76/x
  3. Step 3: Cross multiply
    1,243,839.32x = 1,865,752.62 × 485,757.76
  4. Step 4: Simplify right side
    1,243,839.32x = 906,303,813,405.33
  5. Step 5: Solve for x
    x = 906,303,813,405.33/1,243,839.32
  6. Step 6: Final answer
    x = 728,634.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.