Home / 282,621.60-423,932.40-280,653.30

Finding the Fourth Proportional to 282,621.60, 423,932.40 and 280,653.30

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Solution

The fourth proportional to 282,621.60, 423,932.40 and 280,653.30 is: 420,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,621.60 : 423,932.40 = 280,653.30 : x
  2. Step 2: Convert to fraction form
    282,621.60/423,932.40 = 280,653.30/x
  3. Step 3: Cross multiply
    282,621.60x = 423,932.40 × 280,653.30
  4. Step 4: Simplify right side
    282,621.60x = 118,978,027,036.92
  5. Step 5: Solve for x
    x = 118,978,027,036.92/282,621.60
  6. Step 6: Final answer
    x = 420,979.95

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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.