Home / 979,371.60-1,467,307.80-800,912.40

Finding the Fourth Proportional to 979,371.60, 1,467,307.80 and 800,912.40

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Solution

The fourth proportional to 979,371.60, 1,467,307.80 and 800,912.40 is: 1,199,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,371.60 : 1,467,307.80 = 800,912.40 : x
  2. Step 2: Convert to fraction form
    979,371.60/1,467,307.80 = 800,912.40/x
  3. Step 3: Cross multiply
    979,371.60x = 1,467,307.80 × 800,912.40
  4. Step 4: Simplify right side
    979,371.60x = 1,175,185,011,636.72
  5. Step 5: Solve for x
    x = 1,175,185,011,636.72/979,371.60
  6. Step 6: Final answer
    x = 1,199,937.81

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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.