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Finding the Fourth Proportional to 555,451.70, 766,517.10 and 325,967.98

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Solution

The fourth proportional to 555,451.70, 766,517.10 and 325,967.98 is: 449,832.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,451.70 : 766,517.10 = 325,967.98 : x
  2. Step 2: Convert to fraction form
    555,451.70/766,517.10 = 325,967.98/x
  3. Step 3: Cross multiply
    555,451.70x = 766,517.10 × 325,967.98
  4. Step 4: Simplify right side
    555,451.70x = 249,860,030,722.46
  5. Step 5: Solve for x
    x = 249,860,030,722.46/555,451.70
  6. Step 6: Final answer
    x = 449,832.15

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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.