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Finding the Fourth Proportional to 805,840.32, 1,112,086.08 and 443,292

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Solution

The fourth proportional to 805,840.32, 1,112,086.08 and 443,292 is: 611,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,840.32 : 1,112,086.08 = 443,292 : x
  2. Step 2: Convert to fraction form
    805,840.32/1,112,086.08 = 443,292/x
  3. Step 3: Cross multiply
    805,840.32x = 1,112,086.08 × 443,292
  4. Step 4: Simplify right side
    805,840.32x = 492,978,862,575.36
  5. Step 5: Solve for x
    x = 492,978,862,575.36/805,840.32
  6. Step 6: Final answer
    x = 611,757.50

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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.