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Finding the Fourth Proportional to 709,791.36, 979,299.84 and 454,698.24

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Solution

The fourth proportional to 709,791.36, 979,299.84 and 454,698.24 is: 627,347.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,791.36 : 979,299.84 = 454,698.24 : x
  2. Step 2: Convert to fraction form
    709,791.36/979,299.84 = 454,698.24/x
  3. Step 3: Cross multiply
    709,791.36x = 979,299.84 × 454,698.24
  4. Step 4: Simplify right side
    709,791.36x = 445,285,913,680.28
  5. Step 5: Solve for x
    x = 445,285,913,680.28/709,791.36
  6. Step 6: Final answer
    x = 627,347.61

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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.