Home / 725,521.10-1,088,500.35-388,723.10

Finding the Fourth Proportional to 725,521.10, 1,088,500.35 and 388,723.10

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Solution

The fourth proportional to 725,521.10, 1,088,500.35 and 388,723.10 is: 583,201.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,521.10 : 1,088,500.35 = 388,723.10 : x
  2. Step 2: Convert to fraction form
    725,521.10/1,088,500.35 = 388,723.10/x
  3. Step 3: Cross multiply
    725,521.10x = 1,088,500.35 × 388,723.10
  4. Step 4: Simplify right side
    725,521.10x = 423,125,230,403.09
  5. Step 5: Solve for x
    x = 423,125,230,403.09/725,521.10
  6. Step 6: Final answer
    x = 583,201.83

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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.