Home / 527,145.16-727,512.48-300,824.68

Finding the Fourth Proportional to 527,145.16, 727,512.48 and 300,824.68

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Solution

The fourth proportional to 527,145.16, 727,512.48 and 300,824.68 is: 415,167.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,145.16 : 727,512.48 = 300,824.68 : x
  2. Step 2: Convert to fraction form
    527,145.16/727,512.48 = 300,824.68/x
  3. Step 3: Cross multiply
    527,145.16x = 727,512.48 × 300,824.68
  4. Step 4: Simplify right side
    527,145.16x = 218,853,708,992.01
  5. Step 5: Solve for x
    x = 218,853,708,992.01/527,145.16
  6. Step 6: Final answer
    x = 415,167.82

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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.