Home / 720,121.34-1,079,944.55-240,216.89

Finding the Fourth Proportional to 720,121.34, 1,079,944.55 and 240,216.89

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Solution

The fourth proportional to 720,121.34, 1,079,944.55 and 240,216.89 is: 360,246.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,121.34 : 1,079,944.55 = 240,216.89 : x
  2. Step 2: Convert to fraction form
    720,121.34/1,079,944.55 = 240,216.89/x
  3. Step 3: Cross multiply
    720,121.34x = 1,079,944.55 × 240,216.89
  4. Step 4: Simplify right side
    720,121.34x = 259,420,921,548.14
  5. Step 5: Solve for x
    x = 259,420,921,548.14/720,121.34
  6. Step 6: Final answer
    x = 360,246.13

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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.