Home / 1,917,020.40-2,874,437.10-718,981.80

Finding the Fourth Proportional to 1,917,020.40, 2,874,437.10 and 718,981.80

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Solution

The fourth proportional to 1,917,020.40, 2,874,437.10 and 718,981.80 is: 1,078,062.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,020.40 : 2,874,437.10 = 718,981.80 : x
  2. Step 2: Convert to fraction form
    1,917,020.40/2,874,437.10 = 718,981.80/x
  3. Step 3: Cross multiply
    1,917,020.40x = 2,874,437.10 × 718,981.80
  4. Step 4: Simplify right side
    1,917,020.40x = 2,066,667,960,144.78
  5. Step 5: Solve for x
    x = 2,066,667,960,144.78/1,917,020.40
  6. Step 6: Final answer
    x = 1,078,062.58

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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.