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Finding the Fourth Proportional to 432,010.20, 648,015.30 and 412,327.20

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Solution

The fourth proportional to 432,010.20, 648,015.30 and 412,327.20 is: 618,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,010.20 : 648,015.30 = 412,327.20 : x
  2. Step 2: Convert to fraction form
    432,010.20/648,015.30 = 412,327.20/x
  3. Step 3: Cross multiply
    432,010.20x = 648,015.30 × 412,327.20
  4. Step 4: Simplify right side
    432,010.20x = 267,194,334,206.16
  5. Step 5: Solve for x
    x = 267,194,334,206.16/432,010.20
  6. Step 6: Final answer
    x = 618,490.80

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1.5x scale

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.