Home / 492,550.20-738,825.30-315,403.20

Finding the Fourth Proportional to 492,550.20, 738,825.30 and 315,403.20

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Solution

The fourth proportional to 492,550.20, 738,825.30 and 315,403.20 is: 473,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,550.20 : 738,825.30 = 315,403.20 : x
  2. Step 2: Convert to fraction form
    492,550.20/738,825.30 = 315,403.20/x
  3. Step 3: Cross multiply
    492,550.20x = 738,825.30 × 315,403.20
  4. Step 4: Simplify right side
    492,550.20x = 233,027,863,860.96
  5. Step 5: Solve for x
    x = 233,027,863,860.96/492,550.20
  6. Step 6: Final answer
    x = 473,104.80

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Similar ratio
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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.