Home / 389,896.33-583,513.80-326,787.75

Finding the Fourth Proportional to 389,896.33, 583,513.80 and 326,787.75

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Solution

The fourth proportional to 389,896.33, 583,513.80 and 326,787.75 is: 489,066.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,896.33 : 583,513.80 = 326,787.75 : x
  2. Step 2: Convert to fraction form
    389,896.33/583,513.80 = 326,787.75/x
  3. Step 3: Cross multiply
    389,896.33x = 583,513.80 × 326,787.75
  4. Step 4: Simplify right side
    389,896.33x = 190,685,161,795.95
  5. Step 5: Solve for x
    x = 190,685,161,795.95/389,896.33
  6. Step 6: Final answer
    x = 489,066.32

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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.