Home / 687,675.06-948,976.56-381,733.56

Finding the Fourth Proportional to 687,675.06, 948,976.56 and 381,733.56

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Solution

The fourth proportional to 687,675.06, 948,976.56 and 381,733.56 is: 526,783.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,675.06 : 948,976.56 = 381,733.56 : x
  2. Step 2: Convert to fraction form
    687,675.06/948,976.56 = 381,733.56/x
  3. Step 3: Cross multiply
    687,675.06x = 948,976.56 × 381,733.56
  4. Step 4: Simplify right side
    687,675.06x = 362,256,200,605.35
  5. Step 5: Solve for x
    x = 362,256,200,605.35/687,675.06
  6. Step 6: Final answer
    x = 526,783.97

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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.