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Finding the Fourth Proportional to 437,580.20, 655,058.10 and 259,995.80

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Solution

The fourth proportional to 437,580.20, 655,058.10 and 259,995.80 is: 389,214.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,580.20 : 655,058.10 = 259,995.80 : x
  2. Step 2: Convert to fraction form
    437,580.20/655,058.10 = 259,995.80/x
  3. Step 3: Cross multiply
    437,580.20x = 655,058.10 × 259,995.80
  4. Step 4: Simplify right side
    437,580.20x = 170,312,354,755.98
  5. Step 5: Solve for x
    x = 170,312,354,755.98/437,580.20
  6. Step 6: Final answer
    x = 389,214.03

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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.