Home / 791,385.32-1,092,132.08-485,630.64

Finding the Fourth Proportional to 791,385.32, 1,092,132.08 and 485,630.64

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Solution

The fourth proportional to 791,385.32, 1,092,132.08 and 485,630.64 is: 670,182.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,385.32 : 1,092,132.08 = 485,630.64 : x
  2. Step 2: Convert to fraction form
    791,385.32/1,092,132.08 = 485,630.64/x
  3. Step 3: Cross multiply
    791,385.32x = 1,092,132.08 × 485,630.64
  4. Step 4: Simplify right side
    791,385.32x = 530,372,800,974.93
  5. Step 5: Solve for x
    x = 530,372,800,974.93/791,385.32
  6. Step 6: Final answer
    x = 670,182.76

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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.