Home / 725,879.55-1,088,821.08-220,444.38

Finding the Fourth Proportional to 725,879.55, 1,088,821.08 and 220,444.38

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Solution

The fourth proportional to 725,879.55, 1,088,821.08 and 220,444.38 is: 330,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,879.55 : 1,088,821.08 = 220,444.38 : x
  2. Step 2: Convert to fraction form
    725,879.55/1,088,821.08 = 220,444.38/x
  3. Step 3: Cross multiply
    725,879.55x = 1,088,821.08 × 220,444.38
  4. Step 4: Simplify right side
    725,879.55x = 240,024,487,911.53
  5. Step 5: Solve for x
    x = 240,024,487,911.53/725,879.55
  6. Step 6: Final answer
    x = 330,667.10

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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.