Home / 711,024.72-981,214.22-388,734.90

Finding the Fourth Proportional to 711,024.72, 981,214.22 and 388,734.90

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Solution

The fourth proportional to 711,024.72, 981,214.22 and 388,734.90 is: 536,454.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,024.72 : 981,214.22 = 388,734.90 : x
  2. Step 2: Convert to fraction form
    711,024.72/981,214.22 = 388,734.90/x
  3. Step 3: Cross multiply
    711,024.72x = 981,214.22 × 388,734.90
  4. Step 4: Simplify right side
    711,024.72x = 381,432,208,982.56
  5. Step 5: Solve for x
    x = 381,432,208,982.56/711,024.72
  6. Step 6: Final answer
    x = 536,454.22

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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.