Home / 825,531.60-1,238,382.18-285,787.02

Finding the Fourth Proportional to 825,531.60, 1,238,382.18 and 285,787.02

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Solution

The fourth proportional to 825,531.60, 1,238,382.18 and 285,787.02 is: 428,709.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,531.60 : 1,238,382.18 = 285,787.02 : x
  2. Step 2: Convert to fraction form
    825,531.60/1,238,382.18 = 285,787.02/x
  3. Step 3: Cross multiply
    825,531.60x = 1,238,382.18 × 285,787.02
  4. Step 4: Simplify right side
    825,531.60x = 353,913,552,843.30
  5. Step 5: Solve for x
    x = 353,913,552,843.30/825,531.60
  6. Step 6: Final answer
    x = 428,709.88

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1.5x scale

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.