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Finding the Fourth Proportional to 662,301.77, 993,549.85 and 212,874.48

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Solution

The fourth proportional to 662,301.77, 993,549.85 and 212,874.48 is: 319,342.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,301.77 : 993,549.85 = 212,874.48 : x
  2. Step 2: Convert to fraction form
    662,301.77/993,549.85 = 212,874.48/x
  3. Step 3: Cross multiply
    662,301.77x = 993,549.85 × 212,874.48
  4. Step 4: Simplify right side
    662,301.77x = 211,501,407,140.64
  5. Step 5: Solve for x
    x = 211,501,407,140.64/662,301.77
  6. Step 6: Final answer
    x = 319,342.96

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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.