Home / 727,813.20-1,091,719.80-515,236.80

Finding the Fourth Proportional to 727,813.20, 1,091,719.80 and 515,236.80

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Solution

The fourth proportional to 727,813.20, 1,091,719.80 and 515,236.80 is: 772,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,813.20 : 1,091,719.80 = 515,236.80 : x
  2. Step 2: Convert to fraction form
    727,813.20/1,091,719.80 = 515,236.80/x
  3. Step 3: Cross multiply
    727,813.20x = 1,091,719.80 × 515,236.80
  4. Step 4: Simplify right side
    727,813.20x = 562,494,216,248.64
  5. Step 5: Solve for x
    x = 562,494,216,248.64/727,813.20
  6. Step 6: Final answer
    x = 772,855.20

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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.