Home / 715,217.20-1,072,825.80-383,441.20

Finding the Fourth Proportional to 715,217.20, 1,072,825.80 and 383,441.20

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Solution

The fourth proportional to 715,217.20, 1,072,825.80 and 383,441.20 is: 575,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,217.20 : 1,072,825.80 = 383,441.20 : x
  2. Step 2: Convert to fraction form
    715,217.20/1,072,825.80 = 383,441.20/x
  3. Step 3: Cross multiply
    715,217.20x = 1,072,825.80 × 383,441.20
  4. Step 4: Simplify right side
    715,217.20x = 411,365,612,142.96
  5. Step 5: Solve for x
    x = 411,365,612,142.96/715,217.20
  6. Step 6: Final answer
    x = 575,161.80

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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.