Home / 810,619.45-1,216,552.47-768,993.55

Finding the Fourth Proportional to 810,619.45, 1,216,552.47 and 768,993.55

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Solution

The fourth proportional to 810,619.45, 1,216,552.47 and 768,993.55 is: 1,154,081.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,619.45 : 1,216,552.47 = 768,993.55 : x
  2. Step 2: Convert to fraction form
    810,619.45/1,216,552.47 = 768,993.55/x
  3. Step 3: Cross multiply
    810,619.45x = 1,216,552.47 × 768,993.55
  4. Step 4: Simplify right side
    810,619.45x = 935,520,996,741.46
  5. Step 5: Solve for x
    x = 935,520,996,741.46/810,619.45
  6. Step 6: Final answer
    x = 1,154,081.61

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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.