Home / 527,150.60-727,645.38-320,418.36

Finding the Fourth Proportional to 527,150.60, 727,645.38 and 320,418.36

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Solution

The fourth proportional to 527,150.60, 727,645.38 and 320,418.36 is: 442,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,150.60 : 727,645.38 = 320,418.36 : x
  2. Step 2: Convert to fraction form
    527,150.60/727,645.38 = 320,418.36/x
  3. Step 3: Cross multiply
    527,150.60x = 727,645.38 × 320,418.36
  4. Step 4: Simplify right side
    527,150.60x = 233,150,939,321.18
  5. Step 5: Solve for x
    x = 233,150,939,321.18/527,150.60
  6. Step 6: Final answer
    x = 442,285.26

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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.