Home / 2,106,317.28-2,906,709.12-1,139,445.30

Finding the Fourth Proportional to 2,106,317.28, 2,906,709.12 and 1,139,445.30

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Solution

The fourth proportional to 2,106,317.28, 2,906,709.12 and 1,139,445.30 is: 1,572,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,317.28 : 2,906,709.12 = 1,139,445.30 : x
  2. Step 2: Convert to fraction form
    2,106,317.28/2,906,709.12 = 1,139,445.30/x
  3. Step 3: Cross multiply
    2,106,317.28x = 2,906,709.12 × 1,139,445.30
  4. Step 4: Simplify right side
    2,106,317.28x = 3,312,036,045,251.14
  5. Step 5: Solve for x
    x = 3,312,036,045,251.14/2,106,317.28
  6. Step 6: Final answer
    x = 1,572,429.79

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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.