Home / 817,636.14-1,226,459.79-312,060.78

Finding the Fourth Proportional to 817,636.14, 1,226,459.79 and 312,060.78

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Solution

The fourth proportional to 817,636.14, 1,226,459.79 and 312,060.78 is: 468,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,636.14 : 1,226,459.79 = 312,060.78 : x
  2. Step 2: Convert to fraction form
    817,636.14/1,226,459.79 = 312,060.78/x
  3. Step 3: Cross multiply
    817,636.14x = 1,226,459.79 × 312,060.78
  4. Step 4: Simplify right side
    817,636.14x = 382,729,998,706.04
  5. Step 5: Solve for x
    x = 382,729,998,706.04/817,636.14
  6. Step 6: Final answer
    x = 468,093.30

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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.