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Finding the Fourth Proportional to 555,621.50, 766,602.12 and 348,912.18

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Solution

The fourth proportional to 555,621.50, 766,602.12 and 348,912.18 is: 481,401.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,621.50 : 766,602.12 = 348,912.18 : x
  2. Step 2: Convert to fraction form
    555,621.50/766,602.12 = 348,912.18/x
  3. Step 3: Cross multiply
    555,621.50x = 766,602.12 × 348,912.18
  4. Step 4: Simplify right side
    555,621.50x = 267,476,820,346.31
  5. Step 5: Solve for x
    x = 267,476,820,346.31/555,621.50
  6. Step 6: Final answer
    x = 481,401.13

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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.