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Finding the Fourth Proportional to 488,896.11, 734,466.96 and 345,132.45

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Solution

The fourth proportional to 488,896.11, 734,466.96 and 345,132.45 is: 518,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,896.11 : 734,466.96 = 345,132.45 : x
  2. Step 2: Convert to fraction form
    488,896.11/734,466.96 = 345,132.45/x
  3. Step 3: Cross multiply
    488,896.11x = 734,466.96 × 345,132.45
  4. Step 4: Simplify right side
    488,896.11x = 253,488,381,348.85
  5. Step 5: Solve for x
    x = 253,488,381,348.85/488,896.11
  6. Step 6: Final answer
    x = 518,491.30

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1.5x scale

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.