Home / 786,722.40-1,180,958.40-487,540.80

Finding the Fourth Proportional to 786,722.40, 1,180,958.40 and 487,540.80

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Solution

The fourth proportional to 786,722.40, 1,180,958.40 and 487,540.80 is: 731,853.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,722.40 : 1,180,958.40 = 487,540.80 : x
  2. Step 2: Convert to fraction form
    786,722.40/1,180,958.40 = 487,540.80/x
  3. Step 3: Cross multiply
    786,722.40x = 1,180,958.40 × 487,540.80
  4. Step 4: Simplify right side
    786,722.40x = 575,765,403,102.72
  5. Step 5: Solve for x
    x = 575,765,403,102.72/786,722.40
  6. Step 6: Final answer
    x = 731,853.32

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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.