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Finding the Fourth Proportional to 611,670.32, 917,806.08 and 274,948.88

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Solution

The fourth proportional to 611,670.32, 917,806.08 and 274,948.88 is: 412,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,670.32 : 917,806.08 = 274,948.88 : x
  2. Step 2: Convert to fraction form
    611,670.32/917,806.08 = 274,948.88/x
  3. Step 3: Cross multiply
    611,670.32x = 917,806.08 × 274,948.88
  4. Step 4: Simplify right side
    611,670.32x = 252,349,753,753.19
  5. Step 5: Solve for x
    x = 252,349,753,753.19/611,670.32
  6. Step 6: Final answer
    x = 412,558.44

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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.