Home / 802,915.98-1,107,968.88-440,331.90

Finding the Fourth Proportional to 802,915.98, 1,107,968.88 and 440,331.90

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Solution

The fourth proportional to 802,915.98, 1,107,968.88 and 440,331.90 is: 607,627.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,915.98 : 1,107,968.88 = 440,331.90 : x
  2. Step 2: Convert to fraction form
    802,915.98/1,107,968.88 = 440,331.90/x
  3. Step 3: Cross multiply
    802,915.98x = 1,107,968.88 × 440,331.90
  4. Step 4: Simplify right side
    802,915.98x = 487,874,042,071.27
  5. Step 5: Solve for x
    x = 487,874,042,071.27/802,915.98
  6. Step 6: Final answer
    x = 607,627.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.