Home / 772,809.78-1,157,751.48-515,867.64

Finding the Fourth Proportional to 772,809.78, 1,157,751.48 and 515,867.64

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Solution

The fourth proportional to 772,809.78, 1,157,751.48 and 515,867.64 is: 772,824.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,809.78 : 1,157,751.48 = 515,867.64 : x
  2. Step 2: Convert to fraction form
    772,809.78/1,157,751.48 = 515,867.64/x
  3. Step 3: Cross multiply
    772,809.78x = 1,157,751.48 × 515,867.64
  4. Step 4: Simplify right side
    772,809.78x = 597,246,523,694.11
  5. Step 5: Solve for x
    x = 597,246,523,694.11/772,809.78
  6. Step 6: Final answer
    x = 772,824.75

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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.