Home / 741,086.64-1,111,642.38-208,620.45

Finding the Fourth Proportional to 741,086.64, 1,111,642.38 and 208,620.45

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Solution

The fourth proportional to 741,086.64, 1,111,642.38 and 208,620.45 is: 312,934.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,086.64 : 1,111,642.38 = 208,620.45 : x
  2. Step 2: Convert to fraction form
    741,086.64/1,111,642.38 = 208,620.45/x
  3. Step 3: Cross multiply
    741,086.64x = 1,111,642.38 × 208,620.45
  4. Step 4: Simplify right side
    741,086.64x = 231,911,333,554.67
  5. Step 5: Solve for x
    x = 231,911,333,554.67/741,086.64
  6. Step 6: Final answer
    x = 312,934.17

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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.