Home / 918,383.06-1,377,740.87-378,339.23

Finding the Fourth Proportional to 918,383.06, 1,377,740.87 and 378,339.23

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Solution

The fourth proportional to 918,383.06, 1,377,740.87 and 378,339.23 is: 567,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,383.06 : 1,377,740.87 = 378,339.23 : x
  2. Step 2: Convert to fraction form
    918,383.06/1,377,740.87 = 378,339.23/x
  3. Step 3: Cross multiply
    918,383.06x = 1,377,740.87 × 378,339.23
  4. Step 4: Simplify right side
    918,383.06x = 521,253,419,895.33
  5. Step 5: Solve for x
    x = 521,253,419,895.33/918,383.06
  6. Step 6: Final answer
    x = 567,577.35

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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.