Home / 689,161.62-1,033,729.47-375,613.86

Finding the Fourth Proportional to 689,161.62, 1,033,729.47 and 375,613.86

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Solution

The fourth proportional to 689,161.62, 1,033,729.47 and 375,613.86 is: 563,413.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,161.62 : 1,033,729.47 = 375,613.86 : x
  2. Step 2: Convert to fraction form
    689,161.62/1,033,729.47 = 375,613.86/x
  3. Step 3: Cross multiply
    689,161.62x = 1,033,729.47 × 375,613.86
  4. Step 4: Simplify right side
    689,161.62x = 388,283,116,422.45
  5. Step 5: Solve for x
    x = 388,283,116,422.45/689,161.62
  6. Step 6: Final answer
    x = 563,413.73

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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.