Home / 988,912.96-1,490,781.44-922,999.04

Finding the Fourth Proportional to 988,912.96, 1,490,781.44 and 922,999.04

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Solution

The fourth proportional to 988,912.96, 1,490,781.44 and 922,999.04 is: 1,391,416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,912.96 : 1,490,781.44 = 922,999.04 : x
  2. Step 2: Convert to fraction form
    988,912.96/1,490,781.44 = 922,999.04/x
  3. Step 3: Cross multiply
    988,912.96x = 1,490,781.44 × 922,999.04
  4. Step 4: Simplify right side
    988,912.96x = 1,375,989,837,969.82
  5. Step 5: Solve for x
    x = 1,375,989,837,969.82/988,912.96
  6. Step 6: Final answer
    x = 1,391,416.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.