Home / 1,643,566.22-2,268,077.84-918,419.88

Finding the Fourth Proportional to 1,643,566.22, 2,268,077.84 and 918,419.88

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Solution

The fourth proportional to 1,643,566.22, 2,268,077.84 and 918,419.88 is: 1,267,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,566.22 : 2,268,077.84 = 918,419.88 : x
  2. Step 2: Convert to fraction form
    1,643,566.22/2,268,077.84 = 918,419.88/x
  3. Step 3: Cross multiply
    1,643,566.22x = 2,268,077.84 × 918,419.88
  4. Step 4: Simplify right side
    1,643,566.22x = 2,083,047,777,643.46
  5. Step 5: Solve for x
    x = 2,083,047,777,643.46/1,643,566.22
  6. Step 6: Final answer
    x = 1,267,395.10

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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.