Home / 702,986.20-1,054,932.90-387,669.40

Finding the Fourth Proportional to 702,986.20, 1,054,932.90 and 387,669.40

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Solution

The fourth proportional to 702,986.20, 1,054,932.90 and 387,669.40 is: 581,754.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,986.20 : 1,054,932.90 = 387,669.40 : x
  2. Step 2: Convert to fraction form
    702,986.20/1,054,932.90 = 387,669.40/x
  3. Step 3: Cross multiply
    702,986.20x = 1,054,932.90 × 387,669.40
  4. Step 4: Simplify right side
    702,986.20x = 408,965,204,383.26
  5. Step 5: Solve for x
    x = 408,965,204,383.26/702,986.20
  6. Step 6: Final answer
    x = 581,754.24

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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.