Home / 727,821.20-1,091,731.80-515,244.80

Finding the Fourth Proportional to 727,821.20, 1,091,731.80 and 515,244.80

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Solution

The fourth proportional to 727,821.20, 1,091,731.80 and 515,244.80 is: 772,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,821.20 : 1,091,731.80 = 515,244.80 : x
  2. Step 2: Convert to fraction form
    727,821.20/1,091,731.80 = 515,244.80/x
  3. Step 3: Cross multiply
    727,821.20x = 1,091,731.80 × 515,244.80
  4. Step 4: Simplify right side
    727,821.20x = 562,509,132,944.64
  5. Step 5: Solve for x
    x = 562,509,132,944.64/727,821.20
  6. Step 6: Final answer
    x = 772,867.20

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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.