Home / 862,143.95-1,293,215.94-263,108.18

Finding the Fourth Proportional to 862,143.95, 1,293,215.94 and 263,108.18

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Solution

The fourth proportional to 862,143.95, 1,293,215.94 and 263,108.18 is: 394,662.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,143.95 : 1,293,215.94 = 263,108.18 : x
  2. Step 2: Convert to fraction form
    862,143.95/1,293,215.94 = 263,108.18/x
  3. Step 3: Cross multiply
    862,143.95x = 1,293,215.94 × 263,108.18
  4. Step 4: Simplify right side
    862,143.95x = 340,255,692,320.39
  5. Step 5: Solve for x
    x = 340,255,692,320.39/862,143.95
  6. Step 6: Final answer
    x = 394,662.27

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Double scale
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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.