Home / 640,110.81-960,309.21-240,755.04

Finding the Fourth Proportional to 640,110.81, 960,309.21 and 240,755.04

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Solution

The fourth proportional to 640,110.81, 960,309.21 and 240,755.04 is: 361,186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,110.81 : 960,309.21 = 240,755.04 : x
  2. Step 2: Convert to fraction form
    640,110.81/960,309.21 = 240,755.04/x
  3. Step 3: Cross multiply
    640,110.81x = 960,309.21 × 240,755.04
  4. Step 4: Simplify right side
    640,110.81x = 231,199,282,265.92
  5. Step 5: Solve for x
    x = 231,199,282,265.92/640,110.81
  6. Step 6: Final answer
    x = 361,186.34

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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.