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Finding the Fourth Proportional to 453,468.80, 680,203.20 and 425,475.20

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Solution

The fourth proportional to 453,468.80, 680,203.20 and 425,475.20 is: 638,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,468.80 : 680,203.20 = 425,475.20 : x
  2. Step 2: Convert to fraction form
    453,468.80/680,203.20 = 425,475.20/x
  3. Step 3: Cross multiply
    453,468.80x = 680,203.20 × 425,475.20
  4. Step 4: Simplify right side
    453,468.80x = 289,409,592,560.64
  5. Step 5: Solve for x
    x = 289,409,592,560.64/453,468.80
  6. Step 6: Final answer
    x = 638,212.80

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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.