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Finding the Fourth Proportional to 492,077.80, 737,079.90 and 398,765.80

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Solution

The fourth proportional to 492,077.80, 737,079.90 and 398,765.80 is: 597,308.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,077.80 : 737,079.90 = 398,765.80 : x
  2. Step 2: Convert to fraction form
    492,077.80/737,079.90 = 398,765.80/x
  3. Step 3: Cross multiply
    492,077.80x = 737,079.90 × 398,765.80
  4. Step 4: Simplify right side
    492,077.80x = 293,922,255,987.42
  5. Step 5: Solve for x
    x = 293,922,255,987.42/492,077.80
  6. Step 6: Final answer
    x = 597,308.51

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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.