Home / 1,529,742.78-2,109,788.31-1,357,786.14

Finding the Fourth Proportional to 1,529,742.78, 2,109,788.31 and 1,357,786.14

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Solution

The fourth proportional to 1,529,742.78, 2,109,788.31 and 1,357,786.14 is: 1,872,629.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529,742.78 : 2,109,788.31 = 1,357,786.14 : x
  2. Step 2: Convert to fraction form
    1,529,742.78/2,109,788.31 = 1,357,786.14/x
  3. Step 3: Cross multiply
    1,529,742.78x = 2,109,788.31 × 1,357,786.14
  4. Step 4: Simplify right side
    1,529,742.78x = 2,864,641,325,652.02
  5. Step 5: Solve for x
    x = 2,864,641,325,652.02/1,529,742.78
  6. Step 6: Final answer
    x = 1,872,629.41

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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.