Home / 991,052.28-1,367,718.39-555,474.78

Finding the Fourth Proportional to 991,052.28, 1,367,718.39 and 555,474.78

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Solution

The fourth proportional to 991,052.28, 1,367,718.39 and 555,474.78 is: 766,592.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,052.28 : 1,367,718.39 = 555,474.78 : x
  2. Step 2: Convert to fraction form
    991,052.28/1,367,718.39 = 555,474.78/x
  3. Step 3: Cross multiply
    991,052.28x = 1,367,718.39 × 555,474.78
  4. Step 4: Simplify right side
    991,052.28x = 759,733,071,787.20
  5. Step 5: Solve for x
    x = 759,733,071,787.20/991,052.28
  6. Step 6: Final answer
    x = 766,592.33

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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.