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Finding the Fourth Proportional to 408,095.80, 612,143.70 and 364,550.20

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Solution

The fourth proportional to 408,095.80, 612,143.70 and 364,550.20 is: 546,825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,095.80 : 612,143.70 = 364,550.20 : x
  2. Step 2: Convert to fraction form
    408,095.80/612,143.70 = 364,550.20/x
  3. Step 3: Cross multiply
    408,095.80x = 612,143.70 × 364,550.20
  4. Step 4: Simplify right side
    408,095.80x = 223,157,108,263.74
  5. Step 5: Solve for x
    x = 223,157,108,263.74/408,095.80
  6. Step 6: Final answer
    x = 546,825.30

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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.