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Finding the Fourth Proportional to 1,207,230.80, 1,665,881 and 697,966

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Solution

The fourth proportional to 1,207,230.80, 1,665,881 and 697,966 is: 963,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,230.80 : 1,665,881 = 697,966 : x
  2. Step 2: Convert to fraction form
    1,207,230.80/1,665,881 = 697,966/x
  3. Step 3: Cross multiply
    1,207,230.80x = 1,665,881 × 697,966
  4. Step 4: Simplify right side
    1,207,230.80x = 1,162,728,298,046
  5. Step 5: Solve for x
    x = 1,162,728,298,046/1,207,230.80
  6. Step 6: Final answer
    x = 963,136.71

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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.