Home / 1,094,930.40-1,641,229.20-420,751.20

Finding the Fourth Proportional to 1,094,930.40, 1,641,229.20 and 420,751.20

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Solution

The fourth proportional to 1,094,930.40, 1,641,229.20 and 420,751.20 is: 630,678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094,930.40 : 1,641,229.20 = 420,751.20 : x
  2. Step 2: Convert to fraction form
    1,094,930.40/1,641,229.20 = 420,751.20/x
  3. Step 3: Cross multiply
    1,094,930.40x = 1,641,229.20 × 420,751.20
  4. Step 4: Simplify right side
    1,094,930.40x = 690,549,155,375.04
  5. Step 5: Solve for x
    x = 690,549,155,375.04/1,094,930.40
  6. Step 6: Final answer
    x = 630,678.59

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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.