Home / 437,628.20-656,442.30-280,034.60

Finding the Fourth Proportional to 437,628.20, 656,442.30 and 280,034.60

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Solution

The fourth proportional to 437,628.20, 656,442.30 and 280,034.60 is: 420,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,628.20 : 656,442.30 = 280,034.60 : x
  2. Step 2: Convert to fraction form
    437,628.20/656,442.30 = 280,034.60/x
  3. Step 3: Cross multiply
    437,628.20x = 656,442.30 × 280,034.60
  4. Step 4: Simplify right side
    437,628.20x = 183,826,556,903.58
  5. Step 5: Solve for x
    x = 183,826,556,903.58/437,628.20
  6. Step 6: Final answer
    x = 420,051.90

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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.