Home / 750,620.26-1,035,929.91-428,378.86

Finding the Fourth Proportional to 750,620.26, 1,035,929.91 and 428,378.86

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Solution

The fourth proportional to 750,620.26, 1,035,929.91 and 428,378.86 is: 591,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,620.26 : 1,035,929.91 = 428,378.86 : x
  2. Step 2: Convert to fraction form
    750,620.26/1,035,929.91 = 428,378.86/x
  3. Step 3: Cross multiply
    750,620.26x = 1,035,929.91 × 428,378.86
  4. Step 4: Simplify right side
    750,620.26x = 443,770,473,885.70
  5. Step 5: Solve for x
    x = 443,770,473,885.70/750,620.26
  6. Step 6: Final answer
    x = 591,205.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.