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Finding the Fourth Proportional to 555,324.18, 765,957.64 and 340,549.85

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Solution

The fourth proportional to 555,324.18, 765,957.64 and 340,549.85 is: 469,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,324.18 : 765,957.64 = 340,549.85 : x
  2. Step 2: Convert to fraction form
    555,324.18/765,957.64 = 340,549.85/x
  3. Step 3: Cross multiply
    555,324.18x = 765,957.64 × 340,549.85
  4. Step 4: Simplify right side
    555,324.18x = 260,846,759,408.35
  5. Step 5: Solve for x
    x = 260,846,759,408.35/555,324.18
  6. Step 6: Final answer
    x = 469,719.79

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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.