Home / 1,231,972.80-1,848,218.40-521,635.20

Finding the Fourth Proportional to 1,231,972.80, 1,848,218.40 and 521,635.20

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Solution

The fourth proportional to 1,231,972.80, 1,848,218.40 and 521,635.20 is: 782,562.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,972.80 : 1,848,218.40 = 521,635.20 : x
  2. Step 2: Convert to fraction form
    1,231,972.80/1,848,218.40 = 521,635.20/x
  3. Step 3: Cross multiply
    1,231,972.80x = 1,848,218.40 × 521,635.20
  4. Step 4: Simplify right side
    1,231,972.80x = 964,095,774,727.68
  5. Step 5: Solve for x
    x = 964,095,774,727.68/1,231,972.80
  6. Step 6: Final answer
    x = 782,562.55

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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.