Home / 2,188,994.13-3,020,613.09-1,221,946.47

Finding the Fourth Proportional to 2,188,994.13, 3,020,613.09 and 1,221,946.47

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Solution

The fourth proportional to 2,188,994.13, 3,020,613.09 and 1,221,946.47 is: 1,686,175.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,994.13 : 3,020,613.09 = 1,221,946.47 : x
  2. Step 2: Convert to fraction form
    2,188,994.13/3,020,613.09 = 1,221,946.47/x
  3. Step 3: Cross multiply
    2,188,994.13x = 3,020,613.09 × 1,221,946.47
  4. Step 4: Simplify right side
    2,188,994.13x = 3,691,027,502,561.29
  5. Step 5: Solve for x
    x = 3,691,027,502,561.29/2,188,994.13
  6. Step 6: Final answer
    x = 1,686,175.15

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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.