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Finding the Fourth Proportional to 684,725.88, 944,751.94 and 442,717.25

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Solution

The fourth proportional to 684,725.88, 944,751.94 and 442,717.25 is: 610,840.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,725.88 : 944,751.94 = 442,717.25 : x
  2. Step 2: Convert to fraction form
    684,725.88/944,751.94 = 442,717.25/x
  3. Step 3: Cross multiply
    684,725.88x = 944,751.94 × 442,717.25
  4. Step 4: Simplify right side
    684,725.88x = 418,257,977,468.70
  5. Step 5: Solve for x
    x = 418,257,977,468.70/684,725.88
  6. Step 6: Final answer
    x = 610,840.03

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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.