Home / 791,679.88-1,189,164.85-640,048.33

Finding the Fourth Proportional to 791,679.88, 1,189,164.85 and 640,048.33

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Solution

The fourth proportional to 791,679.88, 1,189,164.85 and 640,048.33 is: 961,402.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,679.88 : 1,189,164.85 = 640,048.33 : x
  2. Step 2: Convert to fraction form
    791,679.88/1,189,164.85 = 640,048.33/x
  3. Step 3: Cross multiply
    791,679.88x = 1,189,164.85 × 640,048.33
  4. Step 4: Simplify right side
    791,679.88x = 761,122,976,223.54
  5. Step 5: Solve for x
    x = 761,122,976,223.54/791,679.88
  6. Step 6: Final answer
    x = 961,402.46

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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.