Home / 804,780.12-1,207,167.75-205,741.38

Finding the Fourth Proportional to 804,780.12, 1,207,167.75 and 205,741.38

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Solution

The fourth proportional to 804,780.12, 1,207,167.75 and 205,741.38 is: 308,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,780.12 : 1,207,167.75 = 205,741.38 : x
  2. Step 2: Convert to fraction form
    804,780.12/1,207,167.75 = 205,741.38/x
  3. Step 3: Cross multiply
    804,780.12x = 1,207,167.75 × 205,741.38
  4. Step 4: Simplify right side
    804,780.12x = 248,364,358,776.50
  5. Step 5: Solve for x
    x = 248,364,358,776.50/804,780.12
  6. Step 6: Final answer
    x = 308,611.45

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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.