Home / 527,102.72-727,400.78-285,385.25

Finding the Fourth Proportional to 527,102.72, 727,400.78 and 285,385.25

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Solution

The fourth proportional to 527,102.72, 727,400.78 and 285,385.25 is: 393,831.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,102.72 : 727,400.78 = 285,385.25 : x
  2. Step 2: Convert to fraction form
    527,102.72/727,400.78 = 285,385.25/x
  3. Step 3: Cross multiply
    527,102.72x = 727,400.78 × 285,385.25
  4. Step 4: Simplify right side
    527,102.72x = 207,589,453,450.50
  5. Step 5: Solve for x
    x = 207,589,453,450.50/527,102.72
  6. Step 6: Final answer
    x = 393,831.12

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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.