Home / 687,475.35-948,701.73-381,533.97

Finding the Fourth Proportional to 687,475.35, 948,701.73 and 381,533.97

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Solution

The fourth proportional to 687,475.35, 948,701.73 and 381,533.97 is: 526,508.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,475.35 : 948,701.73 = 381,533.97 : x
  2. Step 2: Convert to fraction form
    687,475.35/948,701.73 = 381,533.97/x
  3. Step 3: Cross multiply
    687,475.35x = 948,701.73 × 381,533.97
  4. Step 4: Simplify right side
    687,475.35x = 361,961,937,392.77
  5. Step 5: Solve for x
    x = 361,961,937,392.77/687,475.35
  6. Step 6: Final answer
    x = 526,508.97

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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.