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Finding the Fourth Proportional to 508,748.80, 763,468.80 and 284,108.80

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Solution

The fourth proportional to 508,748.80, 763,468.80 and 284,108.80 is: 426,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,748.80 : 763,468.80 = 284,108.80 : x
  2. Step 2: Convert to fraction form
    508,748.80/763,468.80 = 284,108.80/x
  3. Step 3: Cross multiply
    508,748.80x = 763,468.80 × 284,108.80
  4. Step 4: Simplify right side
    508,748.80x = 216,908,204,605.44
  5. Step 5: Solve for x
    x = 216,908,204,605.44/508,748.80
  6. Step 6: Final answer
    x = 426,356.20

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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.