Home / 687,100.02-948,199.14-381,176.42

Finding the Fourth Proportional to 687,100.02, 948,199.14 and 381,176.42

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Solution

The fourth proportional to 687,100.02, 948,199.14 and 381,176.42 is: 526,024.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,100.02 : 948,199.14 = 381,176.42 : x
  2. Step 2: Convert to fraction form
    687,100.02/948,199.14 = 381,176.42/x
  3. Step 3: Cross multiply
    687,100.02x = 948,199.14 × 381,176.42
  4. Step 4: Simplify right side
    687,100.02x = 361,431,148,891.28
  5. Step 5: Solve for x
    x = 361,431,148,891.28/687,100.02
  6. Step 6: Final answer
    x = 526,024.07

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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.