Home / 772,195.67-1,157,476.82-285,565.11

Finding the Fourth Proportional to 772,195.67, 1,157,476.82 and 285,565.11

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Solution

The fourth proportional to 772,195.67, 1,157,476.82 and 285,565.11 is: 428,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,195.67 : 1,157,476.82 = 285,565.11 : x
  2. Step 2: Convert to fraction form
    772,195.67/1,157,476.82 = 285,565.11/x
  3. Step 3: Cross multiply
    772,195.67x = 1,157,476.82 × 285,565.11
  4. Step 4: Simplify right side
    772,195.67x = 330,534,993,997.93
  5. Step 5: Solve for x
    x = 330,534,993,997.93/772,195.67
  6. Step 6: Final answer
    x = 428,045.64

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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.