Home / 1,859,122.65-2,787,786.39-779,345.18

Finding the Fourth Proportional to 1,859,122.65, 2,787,786.39 and 779,345.18

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Solution

The fourth proportional to 1,859,122.65, 2,787,786.39 and 779,345.18 is: 1,168,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859,122.65 : 2,787,786.39 = 779,345.18 : x
  2. Step 2: Convert to fraction form
    1,859,122.65/2,787,786.39 = 779,345.18/x
  3. Step 3: Cross multiply
    1,859,122.65x = 2,787,786.39 × 779,345.18
  4. Step 4: Simplify right side
    1,859,122.65x = 2,172,647,871,977.17
  5. Step 5: Solve for x
    x = 2,172,647,871,977.17/1,859,122.65
  6. Step 6: Final answer
    x = 1,168,641.49

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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.