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Finding the Fourth Proportional to 408,401.80, 612,602.70 and 295,552.60

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Solution

The fourth proportional to 408,401.80, 612,602.70 and 295,552.60 is: 443,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,401.80 : 612,602.70 = 295,552.60 : x
  2. Step 2: Convert to fraction form
    408,401.80/612,602.70 = 295,552.60/x
  3. Step 3: Cross multiply
    408,401.80x = 612,602.70 × 295,552.60
  4. Step 4: Simplify right side
    408,401.80x = 181,056,320,752.02
  5. Step 5: Solve for x
    x = 181,056,320,752.02/408,401.80
  6. Step 6: Final answer
    x = 443,328.90

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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.