Home / 990,891.84-1,367,347.25-549,378.22

Finding the Fourth Proportional to 990,891.84, 1,367,347.25 and 549,378.22

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Solution

The fourth proportional to 990,891.84, 1,367,347.25 and 549,378.22 is: 758,095.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,891.84 : 1,367,347.25 = 549,378.22 : x
  2. Step 2: Convert to fraction form
    990,891.84/1,367,347.25 = 549,378.22/x
  3. Step 3: Cross multiply
    990,891.84x = 1,367,347.25 × 549,378.22
  4. Step 4: Simplify right side
    990,891.84x = 751,190,801,409.53
  5. Step 5: Solve for x
    x = 751,190,801,409.53/990,891.84
  6. Step 6: Final answer
    x = 758,095.66

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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.