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Finding the Fourth Proportional to 576,247.41, 795,234.21 and 318,123.78

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Solution

The fourth proportional to 576,247.41, 795,234.21 and 318,123.78 is: 439,017.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,247.41 : 795,234.21 = 318,123.78 : x
  2. Step 2: Convert to fraction form
    576,247.41/795,234.21 = 318,123.78/x
  3. Step 3: Cross multiply
    576,247.41x = 795,234.21 × 318,123.78
  4. Step 4: Simplify right side
    576,247.41x = 252,982,912,870.51
  5. Step 5: Solve for x
    x = 252,982,912,870.51/576,247.41
  6. Step 6: Final answer
    x = 439,017.87

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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.