Home / 547,120.12-755,151.72-320,838.52

Finding the Fourth Proportional to 547,120.12, 755,151.72 and 320,838.52

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Solution

The fourth proportional to 547,120.12, 755,151.72 and 320,838.52 is: 442,831.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,120.12 : 755,151.72 = 320,838.52 : x
  2. Step 2: Convert to fraction form
    547,120.12/755,151.72 = 320,838.52/x
  3. Step 3: Cross multiply
    547,120.12x = 755,151.72 × 320,838.52
  4. Step 4: Simplify right side
    547,120.12x = 242,281,760,220.25
  5. Step 5: Solve for x
    x = 242,281,760,220.25/547,120.12
  6. Step 6: Final answer
    x = 442,831.02

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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.