Home / 1,218,719.16-1,681,811.75-674,843.27

Finding the Fourth Proportional to 1,218,719.16, 1,681,811.75 and 674,843.27

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Solution

The fourth proportional to 1,218,719.16, 1,681,811.75 and 674,843.27 is: 931,272.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,719.16 : 1,681,811.75 = 674,843.27 : x
  2. Step 2: Convert to fraction form
    1,218,719.16/1,681,811.75 = 674,843.27/x
  3. Step 3: Cross multiply
    1,218,719.16x = 1,681,811.75 × 674,843.27
  4. Step 4: Simplify right side
    1,218,719.16x = 1,134,959,334,172.47
  5. Step 5: Solve for x
    x = 1,134,959,334,172.47/1,218,719.16
  6. Step 6: Final answer
    x = 931,272.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.