Home / 805,255.60-1,208,035.80-265,542.88

Finding the Fourth Proportional to 805,255.60, 1,208,035.80 and 265,542.88

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Solution

The fourth proportional to 805,255.60, 1,208,035.80 and 265,542.88 is: 398,364.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,255.60 : 1,208,035.80 = 265,542.88 : x
  2. Step 2: Convert to fraction form
    805,255.60/1,208,035.80 = 265,542.88/x
  3. Step 3: Cross multiply
    805,255.60x = 1,208,035.80 × 265,542.88
  4. Step 4: Simplify right side
    805,255.60x = 320,785,305,475.10
  5. Step 5: Solve for x
    x = 320,785,305,475.10/805,255.60
  6. Step 6: Final answer
    x = 398,364.58

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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.