Home / 1,643,218.74-2,267,642.82-918,066.45

Finding the Fourth Proportional to 1,643,218.74, 2,267,642.82 and 918,066.45

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Solution

The fourth proportional to 1,643,218.74, 2,267,642.82 and 918,066.45 is: 1,266,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,218.74 : 2,267,642.82 = 918,066.45 : x
  2. Step 2: Convert to fraction form
    1,643,218.74/2,267,642.82 = 918,066.45/x
  3. Step 3: Cross multiply
    1,643,218.74x = 2,267,642.82 × 918,066.45
  4. Step 4: Simplify right side
    1,643,218.74x = 2,081,846,793,625.39
  5. Step 5: Solve for x
    x = 2,081,846,793,625.39/1,643,218.74
  6. Step 6: Final answer
    x = 1,266,932.24

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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.