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Finding the Fourth Proportional to 622,612.20, 934,355.70 and 267,880.80

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Solution

The fourth proportional to 622,612.20, 934,355.70 and 267,880.80 is: 402,009.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,612.20 : 934,355.70 = 267,880.80 : x
  2. Step 2: Convert to fraction form
    622,612.20/934,355.70 = 267,880.80/x
  3. Step 3: Cross multiply
    622,612.20x = 934,355.70 × 267,880.80
  4. Step 4: Simplify right side
    622,612.20x = 250,295,952,400.56
  5. Step 5: Solve for x
    x = 250,295,952,400.56/622,612.20
  6. Step 6: Final answer
    x = 402,009.39

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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.