Home / 738,625.20-1,108,812.60-419,031.60

Finding the Fourth Proportional to 738,625.20, 1,108,812.60 and 419,031.60

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Solution

The fourth proportional to 738,625.20, 1,108,812.60 and 419,031.60 is: 629,043.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,625.20 : 1,108,812.60 = 419,031.60 : x
  2. Step 2: Convert to fraction form
    738,625.20/1,108,812.60 = 419,031.60/x
  3. Step 3: Cross multiply
    738,625.20x = 1,108,812.60 × 419,031.60
  4. Step 4: Simplify right side
    738,625.20x = 464,627,517,878.16
  5. Step 5: Solve for x
    x = 464,627,517,878.16/738,625.20
  6. Step 6: Final answer
    x = 629,043.69

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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.