Home / 681,367.20-1,021,674.60-316,230.72

Finding the Fourth Proportional to 681,367.20, 1,021,674.60 and 316,230.72

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Solution

The fourth proportional to 681,367.20, 1,021,674.60 and 316,230.72 is: 474,171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,367.20 : 1,021,674.60 = 316,230.72 : x
  2. Step 2: Convert to fraction form
    681,367.20/1,021,674.60 = 316,230.72/x
  3. Step 3: Cross multiply
    681,367.20x = 1,021,674.60 × 316,230.72
  4. Step 4: Simplify right side
    681,367.20x = 323,084,894,363.71
  5. Step 5: Solve for x
    x = 323,084,894,363.71/681,367.20
  6. Step 6: Final answer
    x = 474,171.48

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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.