Home / 990,873.82-1,367,322.40-549,360.21

Finding the Fourth Proportional to 990,873.82, 1,367,322.40 and 549,360.21

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Solution

The fourth proportional to 990,873.82, 1,367,322.40 and 549,360.21 is: 758,070.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,873.82 : 1,367,322.40 = 549,360.21 : x
  2. Step 2: Convert to fraction form
    990,873.82/1,367,322.40 = 549,360.21/x
  3. Step 3: Cross multiply
    990,873.82x = 1,367,322.40 × 549,360.21
  4. Step 4: Simplify right side
    990,873.82x = 751,152,526,615.86
  5. Step 5: Solve for x
    x = 751,152,526,615.86/990,873.82
  6. Step 6: Final answer
    x = 758,070.81

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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.