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Finding the Fourth Proportional to 820,701, 1,132,663.56 and 682,636.32

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Solution

The fourth proportional to 820,701, 1,132,663.56 and 682,636.32 is: 942,118.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,701 : 1,132,663.56 = 682,636.32 : x
  2. Step 2: Convert to fraction form
    820,701/1,132,663.56 = 682,636.32/x
  3. Step 3: Cross multiply
    820,701x = 1,132,663.56 × 682,636.32
  4. Step 4: Simplify right side
    820,701x = 773,197,284,396.50
  5. Step 5: Solve for x
    x = 773,197,284,396.50/820,701
  6. Step 6: Final answer
    x = 942,118.12

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1.5x scale

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.