Home / 1,021,791-1,410,505.62-727,631.40

Finding the Fourth Proportional to 1,021,791, 1,410,505.62 and 727,631.40

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Solution

The fourth proportional to 1,021,791, 1,410,505.62 and 727,631.40 is: 1,004,440.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,791 : 1,410,505.62 = 727,631.40 : x
  2. Step 2: Convert to fraction form
    1,021,791/1,410,505.62 = 727,631.40/x
  3. Step 3: Cross multiply
    1,021,791x = 1,410,505.62 × 727,631.40
  4. Step 4: Simplify right side
    1,021,791x = 1,026,328,178,988.47
  5. Step 5: Solve for x
    x = 1,026,328,178,988.47/1,021,791
  6. Step 6: Final answer
    x = 1,004,440.42

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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.