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Finding the Fourth Proportional to 571,780.99, 857,113.80 and 272,181.13

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Solution

The fourth proportional to 571,780.99, 857,113.80 and 272,181.13 is: 408,006.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,780.99 : 857,113.80 = 272,181.13 : x
  2. Step 2: Convert to fraction form
    571,780.99/857,113.80 = 272,181.13/x
  3. Step 3: Cross multiply
    571,780.99x = 857,113.80 × 272,181.13
  4. Step 4: Simplify right side
    571,780.99x = 233,290,200,990.15
  5. Step 5: Solve for x
    x = 233,290,200,990.15/571,780.99
  6. Step 6: Final answer
    x = 408,006.22

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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.