Home / 869,531.70-1,304,297.55-659,579.70

Finding the Fourth Proportional to 869,531.70, 1,304,297.55 and 659,579.70

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Solution

The fourth proportional to 869,531.70, 1,304,297.55 and 659,579.70 is: 989,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,531.70 : 1,304,297.55 = 659,579.70 : x
  2. Step 2: Convert to fraction form
    869,531.70/1,304,297.55 = 659,579.70/x
  3. Step 3: Cross multiply
    869,531.70x = 1,304,297.55 × 659,579.70
  4. Step 4: Simplify right side
    869,531.70x = 860,288,186,739.74
  5. Step 5: Solve for x
    x = 860,288,186,739.74/869,531.70
  6. Step 6: Final answer
    x = 989,369.55

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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.