Home / 776,799.20-1,165,365.20-439,999.04

Finding the Fourth Proportional to 776,799.20, 1,165,365.20 and 439,999.04

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Solution

The fourth proportional to 776,799.20, 1,165,365.20 and 439,999.04 is: 660,092.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,799.20 : 1,165,365.20 = 439,999.04 : x
  2. Step 2: Convert to fraction form
    776,799.20/1,165,365.20 = 439,999.04/x
  3. Step 3: Cross multiply
    776,799.20x = 1,165,365.20 × 439,999.04
  4. Step 4: Simplify right side
    776,799.20x = 512,759,569,249.41
  5. Step 5: Solve for x
    x = 512,759,569,249.41/776,799.20
  6. Step 6: Final answer
    x = 660,092.81

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1.5x scale

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.