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Finding the Fourth Proportional to 535,512.48, 803,401.67 and 265,767.21

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Solution

The fourth proportional to 535,512.48, 803,401.67 and 265,767.21 is: 398,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,512.48 : 803,401.67 = 265,767.21 : x
  2. Step 2: Convert to fraction form
    535,512.48/803,401.67 = 265,767.21/x
  3. Step 3: Cross multiply
    535,512.48x = 803,401.67 × 265,767.21
  4. Step 4: Simplify right side
    535,512.48x = 213,517,822,997.49
  5. Step 5: Solve for x
    x = 213,517,822,997.49/535,512.48
  6. Step 6: Final answer
    x = 398,716.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.