Home / 772,904.40-1,159,932.60-398,734.80

Finding the Fourth Proportional to 772,904.40, 1,159,932.60 and 398,734.80

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Solution

The fourth proportional to 772,904.40, 1,159,932.60 and 398,734.80 is: 598,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,904.40 : 1,159,932.60 = 398,734.80 : x
  2. Step 2: Convert to fraction form
    772,904.40/1,159,932.60 = 398,734.80/x
  3. Step 3: Cross multiply
    772,904.40x = 1,159,932.60 × 398,734.80
  4. Step 4: Simplify right side
    772,904.40x = 462,505,493,274.48
  5. Step 5: Solve for x
    x = 462,505,493,274.48/772,904.40
  6. Step 6: Final answer
    x = 598,399.35

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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.