Home / 640,747.84-961,517.04-325,431.04

Finding the Fourth Proportional to 640,747.84, 961,517.04 and 325,431.04

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Solution

The fourth proportional to 640,747.84, 961,517.04 and 325,431.04 is: 488,347.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,747.84 : 961,517.04 = 325,431.04 : x
  2. Step 2: Convert to fraction form
    640,747.84/961,517.04 = 325,431.04/x
  3. Step 3: Cross multiply
    640,747.84x = 961,517.04 × 325,431.04
  4. Step 4: Simplify right side
    640,747.84x = 312,907,490,304.92
  5. Step 5: Solve for x
    x = 312,907,490,304.92/640,747.84
  6. Step 6: Final answer
    x = 488,347.32

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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.