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Finding the Fourth Proportional to 492,078.30, 737,080.65 and 398,766.30

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Solution

The fourth proportional to 492,078.30, 737,080.65 and 398,766.30 is: 597,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,078.30 : 737,080.65 = 398,766.30 : x
  2. Step 2: Convert to fraction form
    492,078.30/737,080.65 = 398,766.30/x
  3. Step 3: Cross multiply
    492,078.30x = 737,080.65 × 398,766.30
  4. Step 4: Simplify right side
    492,078.30x = 293,922,923,602.10
  5. Step 5: Solve for x
    x = 293,922,923,602.10/492,078.30
  6. Step 6: Final answer
    x = 597,309.26

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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.