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Finding the Fourth Proportional to 518,672.80, 772,554.44 and 494,404

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Solution

The fourth proportional to 518,672.80, 772,554.44 and 494,404 is: 736,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,672.80 : 772,554.44 = 494,404 : x
  2. Step 2: Convert to fraction form
    518,672.80/772,554.44 = 494,404/x
  3. Step 3: Cross multiply
    518,672.80x = 772,554.44 × 494,404
  4. Step 4: Simplify right side
    518,672.80x = 381,954,005,353.76
  5. Step 5: Solve for x
    x = 381,954,005,353.76/518,672.80
  6. Step 6: Final answer
    x = 736,406.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.