Home / 987,988.85-1,362,672.34-850,401.94

Finding the Fourth Proportional to 987,988.85, 1,362,672.34 and 850,401.94

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Solution

The fourth proportional to 987,988.85, 1,362,672.34 and 850,401.94 is: 1,172,907.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,988.85 : 1,362,672.34 = 850,401.94 : x
  2. Step 2: Convert to fraction form
    987,988.85/1,362,672.34 = 850,401.94/x
  3. Step 3: Cross multiply
    987,988.85x = 1,362,672.34 × 850,401.94
  4. Step 4: Simplify right side
    987,988.85x = 1,158,819,195,987.65
  5. Step 5: Solve for x
    x = 1,158,819,195,987.65/987,988.85
  6. Step 6: Final answer
    x = 1,172,907.16

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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.