Home / 654,266.20-981,975.30-387,693.40

Finding the Fourth Proportional to 654,266.20, 981,975.30 and 387,693.40

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Solution

The fourth proportional to 654,266.20, 981,975.30 and 387,693.40 is: 581,881.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,266.20 : 981,975.30 = 387,693.40 : x
  2. Step 2: Convert to fraction form
    654,266.20/981,975.30 = 387,693.40/x
  3. Step 3: Cross multiply
    654,266.20x = 981,975.30 × 387,693.40
  4. Step 4: Simplify right side
    654,266.20x = 380,705,342,773.02
  5. Step 5: Solve for x
    x = 380,705,342,773.02/654,266.20
  6. Step 6: Final answer
    x = 581,881.42

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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.