Home / 709,687.80-1,064,823.30-260,623.80

Finding the Fourth Proportional to 709,687.80, 1,064,823.30 and 260,623.80

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Solution

The fourth proportional to 709,687.80, 1,064,823.30 and 260,623.80 is: 391,042.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,687.80 : 1,064,823.30 = 260,623.80 : x
  2. Step 2: Convert to fraction form
    709,687.80/1,064,823.30 = 260,623.80/x
  3. Step 3: Cross multiply
    709,687.80x = 1,064,823.30 × 260,623.80
  4. Step 4: Simplify right side
    709,687.80x = 277,518,294,774.54
  5. Step 5: Solve for x
    x = 277,518,294,774.54/709,687.80
  6. Step 6: Final answer
    x = 391,042.79

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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.