Home / 690,243.36-1,034,512.56-290,744.16

Finding the Fourth Proportional to 690,243.36, 1,034,512.56 and 290,744.16

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Solution

The fourth proportional to 690,243.36, 1,034,512.56 and 290,744.16 is: 435,757.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,243.36 : 1,034,512.56 = 290,744.16 : x
  2. Step 2: Convert to fraction form
    690,243.36/1,034,512.56 = 290,744.16/x
  3. Step 3: Cross multiply
    690,243.36x = 1,034,512.56 × 290,744.16
  4. Step 4: Simplify right side
    690,243.36x = 300,778,485,266.65
  5. Step 5: Solve for x
    x = 300,778,485,266.65/690,243.36
  6. Step 6: Final answer
    x = 435,757.16

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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.