Home / 753,887.75-1,040,373.15-409,723.70

Finding the Fourth Proportional to 753,887.75, 1,040,373.15 and 409,723.70

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Solution

The fourth proportional to 753,887.75, 1,040,373.15 and 409,723.70 is: 565,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,887.75 : 1,040,373.15 = 409,723.70 : x
  2. Step 2: Convert to fraction form
    753,887.75/1,040,373.15 = 409,723.70/x
  3. Step 3: Cross multiply
    753,887.75x = 1,040,373.15 × 409,723.70
  4. Step 4: Simplify right side
    753,887.75x = 426,265,536,398.66
  5. Step 5: Solve for x
    x = 426,265,536,398.66/753,887.75
  6. Step 6: Final answer
    x = 565,423.08

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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.