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Finding the Fourth Proportional to 612,077.70, 917,679.15 and 274,842.30

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Solution

The fourth proportional to 612,077.70, 917,679.15 and 274,842.30 is: 412,067.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,077.70 : 917,679.15 = 274,842.30 : x
  2. Step 2: Convert to fraction form
    612,077.70/917,679.15 = 274,842.30/x
  3. Step 3: Cross multiply
    612,077.70x = 917,679.15 × 274,842.30
  4. Step 4: Simplify right side
    612,077.70x = 252,217,048,248.05
  5. Step 5: Solve for x
    x = 252,217,048,248.05/612,077.70
  6. Step 6: Final answer
    x = 412,067.04

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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.