Home / 490,381.20-676,726.66-275,521.14

Finding the Fourth Proportional to 490,381.20, 676,726.66 and 275,521.14

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Solution

The fourth proportional to 490,381.20, 676,726.66 and 275,521.14 is: 380,219.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,381.20 : 676,726.66 = 275,521.14 : x
  2. Step 2: Convert to fraction form
    490,381.20/676,726.66 = 275,521.14/x
  3. Step 3: Cross multiply
    490,381.20x = 676,726.66 × 275,521.14
  4. Step 4: Simplify right side
    490,381.20x = 186,452,500,831.59
  5. Step 5: Solve for x
    x = 186,452,500,831.59/490,381.20
  6. Step 6: Final answer
    x = 380,219.51

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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.