Home / 2,868,019.38-3,957,979.68-1,578,979.80

Finding the Fourth Proportional to 2,868,019.38, 3,957,979.68 and 1,578,979.80

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Solution

The fourth proportional to 2,868,019.38, 3,957,979.68 and 1,578,979.80 is: 2,179,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868,019.38 : 3,957,979.68 = 1,578,979.80 : x
  2. Step 2: Convert to fraction form
    2,868,019.38/3,957,979.68 = 1,578,979.80/x
  3. Step 3: Cross multiply
    2,868,019.38x = 3,957,979.68 × 1,578,979.80
  4. Step 4: Simplify right side
    2,868,019.38x = 6,249,569,963,530.47
  5. Step 5: Solve for x
    x = 6,249,569,963,530.47/2,868,019.38
  6. Step 6: Final answer
    x = 2,179,054.30

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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.