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Finding the Fourth Proportional to 834,656.64, 1,251,970.96 and 266,029.96

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Solution

The fourth proportional to 834,656.64, 1,251,970.96 and 266,029.96 is: 399,040.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,656.64 : 1,251,970.96 = 266,029.96 : x
  2. Step 2: Convert to fraction form
    834,656.64/1,251,970.96 = 266,029.96/x
  3. Step 3: Cross multiply
    834,656.64x = 1,251,970.96 × 266,029.96
  4. Step 4: Simplify right side
    834,656.64x = 333,061,784,409.96
  5. Step 5: Solve for x
    x = 333,061,784,409.96/834,656.64
  6. Step 6: Final answer
    x = 399,040.48

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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.