Home / 2,106,419.72-2,906,847.24-1,139,547.20

Finding the Fourth Proportional to 2,106,419.72, 2,906,847.24 and 1,139,547.20

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Solution

The fourth proportional to 2,106,419.72, 2,906,847.24 and 1,139,547.20 is: 1,572,568.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,419.72 : 2,906,847.24 = 1,139,547.20 : x
  2. Step 2: Convert to fraction form
    2,106,419.72/2,906,847.24 = 1,139,547.20/x
  3. Step 3: Cross multiply
    2,106,419.72x = 2,906,847.24 × 1,139,547.20
  4. Step 4: Simplify right side
    2,106,419.72x = 3,312,489,633,169.73
  5. Step 5: Solve for x
    x = 3,312,489,633,169.73/2,106,419.72
  6. Step 6: Final answer
    x = 1,572,568.66

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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.