Home / 779,782.20-1,170,110.70-330,426.60

Finding the Fourth Proportional to 779,782.20, 1,170,110.70 and 330,426.60

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Solution

The fourth proportional to 779,782.20, 1,170,110.70 and 330,426.60 is: 495,825.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,782.20 : 1,170,110.70 = 330,426.60 : x
  2. Step 2: Convert to fraction form
    779,782.20/1,170,110.70 = 330,426.60/x
  3. Step 3: Cross multiply
    779,782.20x = 1,170,110.70 × 330,426.60
  4. Step 4: Simplify right side
    779,782.20x = 386,635,700,224.62
  5. Step 5: Solve for x
    x = 386,635,700,224.62/779,782.20
  6. Step 6: Final answer
    x = 495,825.24

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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.