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Finding the Fourth Proportional to 842,967.36, 1,264,188 and 281,870.88

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Solution

The fourth proportional to 842,967.36, 1,264,188 and 281,870.88 is: 422,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,967.36 : 1,264,188 = 281,870.88 : x
  2. Step 2: Convert to fraction form
    842,967.36/1,264,188 = 281,870.88/x
  3. Step 3: Cross multiply
    842,967.36x = 1,264,188 × 281,870.88
  4. Step 4: Simplify right side
    842,967.36x = 356,337,784,045.44
  5. Step 5: Solve for x
    x = 356,337,784,045.44/842,967.36
  6. Step 6: Final answer
    x = 422,718.36

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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.