Home / 918,116.71-1,376,251.22-378,766.37

Finding the Fourth Proportional to 918,116.71, 1,376,251.22 and 378,766.37

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Solution

The fourth proportional to 918,116.71, 1,376,251.22 and 378,766.37 is: 567,768.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,116.71 : 1,376,251.22 = 378,766.37 : x
  2. Step 2: Convert to fraction form
    918,116.71/1,376,251.22 = 378,766.37/x
  3. Step 3: Cross multiply
    918,116.71x = 1,376,251.22 × 378,766.37
  4. Step 4: Simplify right side
    918,116.71x = 521,277,671,926.22
  5. Step 5: Solve for x
    x = 521,277,671,926.22/918,116.71
  6. Step 6: Final answer
    x = 567,768.42

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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.