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Finding the Fourth Proportional to 555,311.40, 832,967.10 and 275,375.40

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Solution

The fourth proportional to 555,311.40, 832,967.10 and 275,375.40 is: 413,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,311.40 : 832,967.10 = 275,375.40 : x
  2. Step 2: Convert to fraction form
    555,311.40/832,967.10 = 275,375.40/x
  3. Step 3: Cross multiply
    555,311.40x = 832,967.10 × 275,375.40
  4. Step 4: Simplify right side
    555,311.40x = 229,378,648,349.34
  5. Step 5: Solve for x
    x = 229,378,648,349.34/555,311.40
  6. Step 6: Final answer
    x = 413,063.10

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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.