Home / 687,179.89-948,276.24-381,253.03

Finding the Fourth Proportional to 687,179.89, 948,276.24 and 381,253.03

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Solution

The fourth proportional to 687,179.89, 948,276.24 and 381,253.03 is: 526,111.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,179.89 : 948,276.24 = 381,253.03 : x
  2. Step 2: Convert to fraction form
    687,179.89/948,276.24 = 381,253.03/x
  3. Step 3: Cross multiply
    687,179.89x = 948,276.24 × 381,253.03
  4. Step 4: Simplify right side
    687,179.89x = 361,533,189,777.01
  5. Step 5: Solve for x
    x = 361,533,189,777.01/687,179.89
  6. Step 6: Final answer
    x = 526,111.42

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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.