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Finding the Fourth Proportional to 828,866.88, 1,143,810.72 and 466,310.88

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Solution

The fourth proportional to 828,866.88, 1,143,810.72 and 466,310.88 is: 643,494.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,866.88 : 1,143,810.72 = 466,310.88 : x
  2. Step 2: Convert to fraction form
    828,866.88/1,143,810.72 = 466,310.88/x
  3. Step 3: Cross multiply
    828,866.88x = 1,143,810.72 × 466,310.88
  4. Step 4: Simplify right side
    828,866.88x = 533,371,383,396.63
  5. Step 5: Solve for x
    x = 533,371,383,396.63/828,866.88
  6. Step 6: Final answer
    x = 643,494.63

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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.