Home / 379,854.12-569,787.66-313,032.36

Finding the Fourth Proportional to 379,854.12, 569,787.66 and 313,032.36

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Solution

The fourth proportional to 379,854.12, 569,787.66 and 313,032.36 is: 469,553.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,854.12 : 569,787.66 = 313,032.36 : x
  2. Step 2: Convert to fraction form
    379,854.12/569,787.66 = 313,032.36/x
  3. Step 3: Cross multiply
    379,854.12x = 569,787.66 × 313,032.36
  4. Step 4: Simplify right side
    379,854.12x = 178,361,975,908.68
  5. Step 5: Solve for x
    x = 178,361,975,908.68/379,854.12
  6. Step 6: Final answer
    x = 469,553.88

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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.