Home / 690,023.20-1,034,727.60-316,160.80

Finding the Fourth Proportional to 690,023.20, 1,034,727.60 and 316,160.80

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Solution

The fourth proportional to 690,023.20, 1,034,727.60 and 316,160.80 is: 474,100.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,023.20 : 1,034,727.60 = 316,160.80 : x
  2. Step 2: Convert to fraction form
    690,023.20/1,034,727.60 = 316,160.80/x
  3. Step 3: Cross multiply
    690,023.20x = 1,034,727.60 × 316,160.80
  4. Step 4: Simplify right side
    690,023.20x = 327,140,305,798.08
  5. Step 5: Solve for x
    x = 327,140,305,798.08/690,023.20
  6. Step 6: Final answer
    x = 474,100.44

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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.