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Finding the Fourth Proportional to 547,099.26, 755,122.95 and 320,817.66

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Solution

The fourth proportional to 547,099.26, 755,122.95 and 320,817.66 is: 442,802.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,099.26 : 755,122.95 = 320,817.66 : x
  2. Step 2: Convert to fraction form
    547,099.26/755,122.95 = 320,817.66/x
  3. Step 3: Cross multiply
    547,099.26x = 755,122.95 × 320,817.66
  4. Step 4: Simplify right side
    547,099.26x = 242,256,777,831.30
  5. Step 5: Solve for x
    x = 242,256,777,831.30/547,099.26
  6. Step 6: Final answer
    x = 442,802.24

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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.