Home / 486,111.38-670,833.75-268,320.12

Finding the Fourth Proportional to 486,111.38, 670,833.75 and 268,320.12

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Solution

The fourth proportional to 486,111.38, 670,833.75 and 268,320.12 is: 370,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,111.38 : 670,833.75 = 268,320.12 : x
  2. Step 2: Convert to fraction form
    486,111.38/670,833.75 = 268,320.12/x
  3. Step 3: Cross multiply
    486,111.38x = 670,833.75 × 268,320.12
  4. Step 4: Simplify right side
    486,111.38x = 179,998,192,300.05
  5. Step 5: Solve for x
    x = 179,998,192,300.05/486,111.38
  6. Step 6: Final answer
    x = 370,281.79

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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.