Home / 1,020,989.75-1,405,927.15-998,333.24

Finding the Fourth Proportional to 1,020,989.75, 1,405,927.15 and 998,333.24

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Solution

The fourth proportional to 1,020,989.75, 1,405,927.15 and 998,333.24 is: 1,374,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,989.75 : 1,405,927.15 = 998,333.24 : x
  2. Step 2: Convert to fraction form
    1,020,989.75/1,405,927.15 = 998,333.24/x
  3. Step 3: Cross multiply
    1,020,989.75x = 1,405,927.15 × 998,333.24
  4. Step 4: Simplify right side
    1,020,989.75x = 1,403,583,807,882.45
  5. Step 5: Solve for x
    x = 1,403,583,807,882.45/1,020,989.75
  6. Step 6: Final answer
    x = 1,374,728.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.