Home / 690,143.40-1,034,243.10-548,231.40

Finding the Fourth Proportional to 690,143.40, 1,034,243.10 and 548,231.40

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Solution

The fourth proportional to 690,143.40, 1,034,243.10 and 548,231.40 is: 821,574.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,143.40 : 1,034,243.10 = 548,231.40 : x
  2. Step 2: Convert to fraction form
    690,143.40/1,034,243.10 = 548,231.40/x
  3. Step 3: Cross multiply
    690,143.40x = 1,034,243.10 × 548,231.40
  4. Step 4: Simplify right side
    690,143.40x = 567,004,542,653.34
  5. Step 5: Solve for x
    x = 567,004,542,653.34/690,143.40
  6. Step 6: Final answer
    x = 821,574.97

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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.