Home / 805,364.43-1,208,018.69-206,331.56

Finding the Fourth Proportional to 805,364.43, 1,208,018.69 and 206,331.56

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Solution

The fourth proportional to 805,364.43, 1,208,018.69 and 206,331.56 is: 309,490.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,364.43 : 1,208,018.69 = 206,331.56 : x
  2. Step 2: Convert to fraction form
    805,364.43/1,208,018.69 = 206,331.56/x
  3. Step 3: Cross multiply
    805,364.43x = 1,208,018.69 × 206,331.56
  4. Step 4: Simplify right side
    805,364.43x = 249,252,380,816.86
  5. Step 5: Solve for x
    x = 249,252,380,816.86/805,364.43
  6. Step 6: Final answer
    x = 309,490.18

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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.