Home / 998,578.54-1,497,243.75-421,905.39

Finding the Fourth Proportional to 998,578.54, 1,497,243.75 and 421,905.39

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Solution

The fourth proportional to 998,578.54, 1,497,243.75 and 421,905.39 is: 632,594.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,578.54 : 1,497,243.75 = 421,905.39 : x
  2. Step 2: Convert to fraction form
    998,578.54/1,497,243.75 = 421,905.39/x
  3. Step 3: Cross multiply
    998,578.54x = 1,497,243.75 × 421,905.39
  4. Step 4: Simplify right side
    998,578.54x = 631,695,208,268.81
  5. Step 5: Solve for x
    x = 631,695,208,268.81/998,578.54
  6. Step 6: Final answer
    x = 632,594.42

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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.