Home / 2,915,055.81-4,022,784-1,625,979.69

Finding the Fourth Proportional to 2,915,055.81, 4,022,784 and 1,625,979.69

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Solution

The fourth proportional to 2,915,055.81, 4,022,784 and 1,625,979.69 is: 2,243,855.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915,055.81 : 4,022,784 = 1,625,979.69 : x
  2. Step 2: Convert to fraction form
    2,915,055.81/4,022,784 = 1,625,979.69/x
  3. Step 3: Cross multiply
    2,915,055.81x = 4,022,784 × 1,625,979.69
  4. Step 4: Simplify right side
    2,915,055.81x = 6,540,965,081,256.96
  5. Step 5: Solve for x
    x = 6,540,965,081,256.96/2,915,055.81
  6. Step 6: Final answer
    x = 2,243,855.87

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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.