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Finding the Fourth Proportional to 762,717, 1,048,816.98 and 661,940.04

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Solution

The fourth proportional to 762,717, 1,048,816.98 and 661,940.04 is: 910,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,717 : 1,048,816.98 = 661,940.04 : x
  2. Step 2: Convert to fraction form
    762,717/1,048,816.98 = 661,940.04/x
  3. Step 3: Cross multiply
    762,717x = 1,048,816.98 × 661,940.04
  4. Step 4: Simplify right side
    762,717x = 694,253,953,693.88
  5. Step 5: Solve for x
    x = 694,253,953,693.88/762,717
  6. Step 6: Final answer
    x = 910,237.94

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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.