Home / 817,936.26-1,226,713.64-312,311.58

Finding the Fourth Proportional to 817,936.26, 1,226,713.64 and 312,311.58

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Solution

The fourth proportional to 817,936.26, 1,226,713.64 and 312,311.58 is: 468,394.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,936.26 : 1,226,713.64 = 312,311.58 : x
  2. Step 2: Convert to fraction form
    817,936.26/1,226,713.64 = 312,311.58/x
  3. Step 3: Cross multiply
    817,936.26x = 1,226,713.64 × 312,311.58
  4. Step 4: Simplify right side
    817,936.26x = 383,116,873,554.39
  5. Step 5: Solve for x
    x = 383,116,873,554.39/817,936.26
  6. Step 6: Final answer
    x = 468,394.53

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Double scale
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1.5x scale

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.