Home / 998,618.22-1,378,349.46-616,425.39

Finding the Fourth Proportional to 998,618.22, 1,378,349.46 and 616,425.39

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Solution

The fourth proportional to 998,618.22, 1,378,349.46 and 616,425.39 is: 850,825.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,618.22 : 1,378,349.46 = 616,425.39 : x
  2. Step 2: Convert to fraction form
    998,618.22/1,378,349.46 = 616,425.39/x
  3. Step 3: Cross multiply
    998,618.22x = 1,378,349.46 × 616,425.39
  4. Step 4: Simplify right side
    998,618.22x = 849,649,603,436.79
  5. Step 5: Solve for x
    x = 849,649,603,436.79/998,618.22
  6. Step 6: Final answer
    x = 850,825.26

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1.5x scale

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.