Home / 779,320.85-1,169,026.63-218,399.09

Finding the Fourth Proportional to 779,320.85, 1,169,026.63 and 218,399.09

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Solution

The fourth proportional to 779,320.85, 1,169,026.63 and 218,399.09 is: 327,611.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,320.85 : 1,169,026.63 = 218,399.09 : x
  2. Step 2: Convert to fraction form
    779,320.85/1,169,026.63 = 218,399.09/x
  3. Step 3: Cross multiply
    779,320.85x = 1,169,026.63 × 218,399.09
  4. Step 4: Simplify right side
    779,320.85x = 255,314,345,786.64
  5. Step 5: Solve for x
    x = 255,314,345,786.64/779,320.85
  6. Step 6: Final answer
    x = 327,611.34

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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.