Home / 989,921.18-1,485,042.60-306,648.48

Finding the Fourth Proportional to 989,921.18, 1,485,042.60 and 306,648.48

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Solution

The fourth proportional to 989,921.18, 1,485,042.60 and 306,648.48 is: 460,022.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,921.18 : 1,485,042.60 = 306,648.48 : x
  2. Step 2: Convert to fraction form
    989,921.18/1,485,042.60 = 306,648.48/x
  3. Step 3: Cross multiply
    989,921.18x = 1,485,042.60 × 306,648.48
  4. Step 4: Simplify right side
    989,921.18x = 455,386,056,025.25
  5. Step 5: Solve for x
    x = 455,386,056,025.25/989,921.18
  6. Step 6: Final answer
    x = 460,022.54

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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.