Home / 869,721.12-1,304,622.64-717,636.04

Finding the Fourth Proportional to 869,721.12, 1,304,622.64 and 717,636.04

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Solution

The fourth proportional to 869,721.12, 1,304,622.64 and 717,636.04 is: 1,076,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,721.12 : 1,304,622.64 = 717,636.04 : x
  2. Step 2: Convert to fraction form
    869,721.12/1,304,622.64 = 717,636.04/x
  3. Step 3: Cross multiply
    869,721.12x = 1,304,622.64 × 717,636.04
  4. Step 4: Simplify right side
    869,721.12x = 936,244,225,063.95
  5. Step 5: Solve for x
    x = 936,244,225,063.95/869,721.12
  6. Step 6: Final answer
    x = 1,076,487.86

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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.