Home / 859,314.66-1,288,963.78-522,448.31

Finding the Fourth Proportional to 859,314.66, 1,288,963.78 and 522,448.31

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Solution

The fourth proportional to 859,314.66, 1,288,963.78 and 522,448.31 is: 783,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,314.66 : 1,288,963.78 = 522,448.31 : x
  2. Step 2: Convert to fraction form
    859,314.66/1,288,963.78 = 522,448.31/x
  3. Step 3: Cross multiply
    859,314.66x = 1,288,963.78 × 522,448.31
  4. Step 4: Simplify right side
    859,314.66x = 673,416,950,428.50
  5. Step 5: Solve for x
    x = 673,416,950,428.50/859,314.66
  6. Step 6: Final answer
    x = 783,667.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.