Home / 1,433,705.49-1,978,514.10-789,121.08

Finding the Fourth Proportional to 1,433,705.49, 1,978,514.10 and 789,121.08

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Solution

The fourth proportional to 1,433,705.49, 1,978,514.10 and 789,121.08 is: 1,088,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,705.49 : 1,978,514.10 = 789,121.08 : x
  2. Step 2: Convert to fraction form
    1,433,705.49/1,978,514.10 = 789,121.08/x
  3. Step 3: Cross multiply
    1,433,705.49x = 1,978,514.10 × 789,121.08
  4. Step 4: Simplify right side
    1,433,705.49x = 1,561,287,183,387.23
  5. Step 5: Solve for x
    x = 1,561,287,183,387.23/1,433,705.49
  6. Step 6: Final answer
    x = 1,088,987.38

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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.