Home / 743,002.92-1,025,348.04-420,775.74

Finding the Fourth Proportional to 743,002.92, 1,025,348.04 and 420,775.74

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Solution

The fourth proportional to 743,002.92, 1,025,348.04 and 420,775.74 is: 580,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,002.92 : 1,025,348.04 = 420,775.74 : x
  2. Step 2: Convert to fraction form
    743,002.92/1,025,348.04 = 420,775.74/x
  3. Step 3: Cross multiply
    743,002.92x = 1,025,348.04 × 420,775.74
  4. Step 4: Simplify right side
    743,002.92x = 431,441,580,288.55
  5. Step 5: Solve for x
    x = 431,441,580,288.55/743,002.92
  6. Step 6: Final answer
    x = 580,672.79

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1.5x scale

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.