Home / 687,634.86-948,927.74-381,713.64

Finding the Fourth Proportional to 687,634.86, 948,927.74 and 381,713.64

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Solution

The fourth proportional to 687,634.86, 948,927.74 and 381,713.64 is: 526,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,634.86 : 948,927.74 = 381,713.64 : x
  2. Step 2: Convert to fraction form
    687,634.86/948,927.74 = 381,713.64/x
  3. Step 3: Cross multiply
    687,634.86x = 948,927.74 × 381,713.64
  4. Step 4: Simplify right side
    687,634.86x = 362,218,661,732.37
  5. Step 5: Solve for x
    x = 362,218,661,732.37/687,634.86
  6. Step 6: Final answer
    x = 526,760.18

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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.