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Finding the Fourth Proportional to 643,707.39, 966,196.68 and 483,225.33

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Solution

The fourth proportional to 643,707.39, 966,196.68 and 483,225.33 is: 725,315.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,707.39 : 966,196.68 = 483,225.33 : x
  2. Step 2: Convert to fraction form
    643,707.39/966,196.68 = 483,225.33/x
  3. Step 3: Cross multiply
    643,707.39x = 966,196.68 × 483,225.33
  4. Step 4: Simplify right side
    643,707.39x = 466,890,709,537.90
  5. Step 5: Solve for x
    x = 466,890,709,537.90/643,707.39
  6. Step 6: Final answer
    x = 725,315.13

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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.