Home / 687,565.43-948,825.59-381,623.97

Finding the Fourth Proportional to 687,565.43, 948,825.59 and 381,623.97

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Solution

The fourth proportional to 687,565.43, 948,825.59 and 381,623.97 is: 526,632.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,565.43 : 948,825.59 = 381,623.97 : x
  2. Step 2: Convert to fraction form
    687,565.43/948,825.59 = 381,623.97/x
  3. Step 3: Cross multiply
    687,565.43x = 948,825.59 × 381,623.97
  4. Step 4: Simplify right side
    687,565.43x = 362,094,586,585.27
  5. Step 5: Solve for x
    x = 362,094,586,585.27/687,565.43
  6. Step 6: Final answer
    x = 526,632.92

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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.