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Finding the Fourth Proportional to 880,093.78, 1,214,428.89 and 492,855.37

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Solution

The fourth proportional to 880,093.78, 1,214,428.89 and 492,855.37 is: 680,084.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,093.78 : 1,214,428.89 = 492,855.37 : x
  2. Step 2: Convert to fraction form
    880,093.78/1,214,428.89 = 492,855.37/x
  3. Step 3: Cross multiply
    880,093.78x = 1,214,428.89 × 492,855.37
  4. Step 4: Simplify right side
    880,093.78x = 598,537,799,919.64
  5. Step 5: Solve for x
    x = 598,537,799,919.64/880,093.78
  6. Step 6: Final answer
    x = 680,084.12

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1.5x scale

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.