Home / 551,619.91-828,675.49-327,127.61

Finding the Fourth Proportional to 551,619.91, 828,675.49 and 327,127.61

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Solution

The fourth proportional to 551,619.91, 828,675.49 and 327,127.61 is: 491,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,619.91 : 828,675.49 = 327,127.61 : x
  2. Step 2: Convert to fraction form
    551,619.91/828,675.49 = 327,127.61/x
  3. Step 3: Cross multiply
    551,619.91x = 828,675.49 × 327,127.61
  4. Step 4: Simplify right side
    551,619.91x = 271,082,627,548.08
  5. Step 5: Solve for x
    x = 271,082,627,548.08/551,619.91
  6. Step 6: Final answer
    x = 491,430.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.