Home / 815,727.40-1,223,591.10-343,335.40

Finding the Fourth Proportional to 815,727.40, 1,223,591.10 and 343,335.40

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Solution

The fourth proportional to 815,727.40, 1,223,591.10 and 343,335.40 is: 515,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,727.40 : 1,223,591.10 = 343,335.40 : x
  2. Step 2: Convert to fraction form
    815,727.40/1,223,591.10 = 343,335.40/x
  3. Step 3: Cross multiply
    815,727.40x = 1,223,591.10 × 343,335.40
  4. Step 4: Simplify right side
    815,727.40x = 420,102,139,754.94
  5. Step 5: Solve for x
    x = 420,102,139,754.94/815,727.40
  6. Step 6: Final answer
    x = 515,003.10

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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.