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Finding the Fourth Proportional to 571,460.40, 857,555.10 and 272,278.80

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Solution

The fourth proportional to 571,460.40, 857,555.10 and 272,278.80 is: 408,591.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,460.40 : 857,555.10 = 272,278.80 : x
  2. Step 2: Convert to fraction form
    571,460.40/857,555.10 = 272,278.80/x
  3. Step 3: Cross multiply
    571,460.40x = 857,555.10 × 272,278.80
  4. Step 4: Simplify right side
    571,460.40x = 233,494,073,561.88
  5. Step 5: Solve for x
    x = 233,494,073,561.88/571,460.40
  6. Step 6: Final answer
    x = 408,591.87

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1.5x scale

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.