Home / 687,180.89-948,277.62-381,254.03

Finding the Fourth Proportional to 687,180.89, 948,277.62 and 381,254.03

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Solution

The fourth proportional to 687,180.89, 948,277.62 and 381,254.03 is: 526,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,180.89 : 948,277.62 = 381,254.03 : x
  2. Step 2: Convert to fraction form
    687,180.89/948,277.62 = 381,254.03/x
  3. Step 3: Cross multiply
    687,180.89x = 948,277.62 × 381,254.03
  4. Step 4: Simplify right side
    687,180.89x = 361,534,664,183.81
  5. Step 5: Solve for x
    x = 361,534,664,183.81/687,180.89
  6. Step 6: Final answer
    x = 526,112.80

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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.