Home / 1,325,407.20-1,989,147.60-615,523.20

Finding the Fourth Proportional to 1,325,407.20, 1,989,147.60 and 615,523.20

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Solution

The fourth proportional to 1,325,407.20, 1,989,147.60 and 615,523.20 is: 923,766.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,407.20 : 1,989,147.60 = 615,523.20 : x
  2. Step 2: Convert to fraction form
    1,325,407.20/1,989,147.60 = 615,523.20/x
  3. Step 3: Cross multiply
    1,325,407.20x = 1,989,147.60 × 615,523.20
  4. Step 4: Simplify right side
    1,325,407.20x = 1,224,366,496,024.32
  5. Step 5: Solve for x
    x = 1,224,366,496,024.32/1,325,407.20
  6. Step 6: Final answer
    x = 923,766.29

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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.