Home / 638,787.84-959,572.68-386,187.29

Finding the Fourth Proportional to 638,787.84, 959,572.68 and 386,187.29

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Solution

The fourth proportional to 638,787.84, 959,572.68 and 386,187.29 is: 580,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,787.84 : 959,572.68 = 386,187.29 : x
  2. Step 2: Convert to fraction form
    638,787.84/959,572.68 = 386,187.29/x
  3. Step 3: Cross multiply
    638,787.84x = 959,572.68 × 386,187.29
  4. Step 4: Simplify right side
    638,787.84x = 370,574,775,597.17
  5. Step 5: Solve for x
    x = 370,574,775,597.17/638,787.84
  6. Step 6: Final answer
    x = 580,121.83

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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.