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Finding the Fourth Proportional to 537,755.10, 804,605.91 and 320,811.54

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Solution

The fourth proportional to 537,755.10, 804,605.91 and 320,811.54 is: 480,008.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,755.10 : 804,605.91 = 320,811.54 : x
  2. Step 2: Convert to fraction form
    537,755.10/804,605.91 = 320,811.54/x
  3. Step 3: Cross multiply
    537,755.10x = 804,605.91 × 320,811.54
  4. Step 4: Simplify right side
    537,755.10x = 258,126,861,080.20
  5. Step 5: Solve for x
    x = 258,126,861,080.20/537,755.10
  6. Step 6: Final answer
    x = 480,008.21

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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.