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Finding the Fourth Proportional to 453,402.20, 679,520.10 and 275,720.60

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Solution

The fourth proportional to 453,402.20, 679,520.10 and 275,720.60 is: 413,226.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,402.20 : 679,520.10 = 275,720.60 : x
  2. Step 2: Convert to fraction form
    453,402.20/679,520.10 = 275,720.60/x
  3. Step 3: Cross multiply
    453,402.20x = 679,520.10 × 275,720.60
  4. Step 4: Simplify right side
    453,402.20x = 187,357,689,684.06
  5. Step 5: Solve for x
    x = 187,357,689,684.06/453,402.20
  6. Step 6: Final answer
    x = 413,226.25

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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.