Home / 989,540.16-1,484,407.44-279,573.72

Finding the Fourth Proportional to 989,540.16, 1,484,407.44 and 279,573.72

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Solution

The fourth proportional to 989,540.16, 1,484,407.44 and 279,573.72 is: 419,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,540.16 : 1,484,407.44 = 279,573.72 : x
  2. Step 2: Convert to fraction form
    989,540.16/1,484,407.44 = 279,573.72/x
  3. Step 3: Cross multiply
    989,540.16x = 1,484,407.44 × 279,573.72
  4. Step 4: Simplify right side
    989,540.16x = 415,001,309,996.48
  5. Step 5: Solve for x
    x = 415,001,309,996.48/989,540.16
  6. Step 6: Final answer
    x = 419,388.04

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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.