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Finding the Fourth Proportional to 662,284.88, 993,620.88 and 212,995.68

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Solution

The fourth proportional to 662,284.88, 993,620.88 and 212,995.68 is: 319,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,284.88 : 993,620.88 = 212,995.68 : x
  2. Step 2: Convert to fraction form
    662,284.88/993,620.88 = 212,995.68/x
  3. Step 3: Cross multiply
    662,284.88x = 993,620.88 × 212,995.68
  4. Step 4: Simplify right side
    662,284.88x = 211,636,954,997.80
  5. Step 5: Solve for x
    x = 211,636,954,997.80/662,284.88
  6. Step 6: Final answer
    x = 319,555.77

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1.5x scale

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.