Home / 692,649.20-1,039,114.20-393,273.20

Finding the Fourth Proportional to 692,649.20, 1,039,114.20 and 393,273.20

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Solution

The fourth proportional to 692,649.20, 1,039,114.20 and 393,273.20 is: 589,989.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,649.20 : 1,039,114.20 = 393,273.20 : x
  2. Step 2: Convert to fraction form
    692,649.20/1,039,114.20 = 393,273.20/x
  3. Step 3: Cross multiply
    692,649.20x = 1,039,114.20 × 393,273.20
  4. Step 4: Simplify right side
    692,649.20x = 408,655,766,599.44
  5. Step 5: Solve for x
    x = 408,655,766,599.44/692,649.20
  6. Step 6: Final answer
    x = 589,989.52

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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.