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Finding the Fourth Proportional to 827,207.40, 1,159,665 and 827,207.40

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Solution

The fourth proportional to 827,207.40, 1,159,665 and 827,207.40 is: 1,159,665

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,207.40 : 1,159,665 = 827,207.40 : x
  2. Step 2: Convert to fraction form
    827,207.40/1,159,665 = 827,207.40/x
  3. Step 3: Cross multiply
    827,207.40x = 1,159,665 × 827,207.40
  4. Step 4: Simplify right side
    827,207.40x = 959,283,469,521
  5. Step 5: Solve for x
    x = 959,283,469,521/827,207.40
  6. Step 6: Final answer
    x = 1,159,665

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.