Home / 688,906.60-1,033,388.70-368,924.20

Finding the Fourth Proportional to 688,906.60, 1,033,388.70 and 368,924.20

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Solution

The fourth proportional to 688,906.60, 1,033,388.70 and 368,924.20 is: 553,401.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,906.60 : 1,033,388.70 = 368,924.20 : x
  2. Step 2: Convert to fraction form
    688,906.60/1,033,388.70 = 368,924.20/x
  3. Step 3: Cross multiply
    688,906.60x = 1,033,388.70 × 368,924.20
  4. Step 4: Simplify right side
    688,906.60x = 381,242,099,436.54
  5. Step 5: Solve for x
    x = 381,242,099,436.54/688,906.60
  6. Step 6: Final answer
    x = 553,401.72

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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.