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Finding the Fourth Proportional to 654,401.20, 902,770.54 and 382,480.56

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Solution

The fourth proportional to 654,401.20, 902,770.54 and 382,480.56 is: 527,646.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,401.20 : 902,770.54 = 382,480.56 : x
  2. Step 2: Convert to fraction form
    654,401.20/902,770.54 = 382,480.56/x
  3. Step 3: Cross multiply
    654,401.20x = 902,770.54 × 382,480.56
  4. Step 4: Simplify right side
    654,401.20x = 345,292,181,690.70
  5. Step 5: Solve for x
    x = 345,292,181,690.70/654,401.20
  6. Step 6: Final answer
    x = 527,646.01

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1.5x scale

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.