Home / 1,328,358.78-1,993,599.81-688,844.34

Finding the Fourth Proportional to 1,328,358.78, 1,993,599.81 and 688,844.34

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Solution

The fourth proportional to 1,328,358.78, 1,993,599.81 and 688,844.34 is: 1,033,817.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,358.78 : 1,993,599.81 = 688,844.34 : x
  2. Step 2: Convert to fraction form
    1,328,358.78/1,993,599.81 = 688,844.34/x
  3. Step 3: Cross multiply
    1,328,358.78x = 1,993,599.81 × 688,844.34
  4. Step 4: Simplify right side
    1,328,358.78x = 1,373,279,945,343.58
  5. Step 5: Solve for x
    x = 1,373,279,945,343.58/1,328,358.78
  6. Step 6: Final answer
    x = 1,033,817.04

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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.