Home / 779,965.30-1,170,057.30-306,540.55

Finding the Fourth Proportional to 779,965.30, 1,170,057.30 and 306,540.55

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Solution

The fourth proportional to 779,965.30, 1,170,057.30 and 306,540.55 is: 459,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,965.30 : 1,170,057.30 = 306,540.55 : x
  2. Step 2: Convert to fraction form
    779,965.30/1,170,057.30 = 306,540.55/x
  3. Step 3: Cross multiply
    779,965.30x = 1,170,057.30 × 306,540.55
  4. Step 4: Simplify right side
    779,965.30x = 358,670,008,273.52
  5. Step 5: Solve for x
    x = 358,670,008,273.52/779,965.30
  6. Step 6: Final answer
    x = 459,853.80

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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.