Home / 753,887.25-1,040,372.46-409,723.20

Finding the Fourth Proportional to 753,887.25, 1,040,372.46 and 409,723.20

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Solution

The fourth proportional to 753,887.25, 1,040,372.46 and 409,723.20 is: 565,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,887.25 : 1,040,372.46 = 409,723.20 : x
  2. Step 2: Convert to fraction form
    753,887.25/1,040,372.46 = 409,723.20/x
  3. Step 3: Cross multiply
    753,887.25x = 1,040,372.46 × 409,723.20
  4. Step 4: Simplify right side
    753,887.25x = 426,264,733,503.07
  5. Step 5: Solve for x
    x = 426,264,733,503.07/753,887.25
  6. Step 6: Final answer
    x = 565,422.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.