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Finding the Fourth Proportional to 717,252.08, 989,511.24 and 426,806

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Solution

The fourth proportional to 717,252.08, 989,511.24 and 426,806 is: 588,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,252.08 : 989,511.24 = 426,806 : x
  2. Step 2: Convert to fraction form
    717,252.08/989,511.24 = 426,806/x
  3. Step 3: Cross multiply
    717,252.08x = 989,511.24 × 426,806
  4. Step 4: Simplify right side
    717,252.08x = 422,329,334,299.44
  5. Step 5: Solve for x
    x = 422,329,334,299.44/717,252.08
  6. Step 6: Final answer
    x = 588,815.77

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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.