Home / 998,718.69-1,378,238.04-539,832.33

Finding the Fourth Proportional to 998,718.69, 1,378,238.04 and 539,832.33

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Solution

The fourth proportional to 998,718.69, 1,378,238.04 and 539,832.33 is: 744,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,718.69 : 1,378,238.04 = 539,832.33 : x
  2. Step 2: Convert to fraction form
    998,718.69/1,378,238.04 = 539,832.33/x
  3. Step 3: Cross multiply
    998,718.69x = 1,378,238.04 × 539,832.33
  4. Step 4: Simplify right side
    998,718.69x = 744,017,452,427.83
  5. Step 5: Solve for x
    x = 744,017,452,427.83/998,718.69
  6. Step 6: Final answer
    x = 744,971.99

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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.