Home / 2,256,534-3,113,259.64-1,288,979.28

Finding the Fourth Proportional to 2,256,534, 3,113,259.64 and 1,288,979.28

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Solution

The fourth proportional to 2,256,534, 3,113,259.64 and 1,288,979.28 is: 1,778,358.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256,534 : 3,113,259.64 = 1,288,979.28 : x
  2. Step 2: Convert to fraction form
    2,256,534/3,113,259.64 = 1,288,979.28/x
  3. Step 3: Cross multiply
    2,256,534x = 3,113,259.64 × 1,288,979.28
  4. Step 4: Simplify right side
    2,256,534x = 4,012,927,165,997.81
  5. Step 5: Solve for x
    x = 4,012,927,165,997.81/2,256,534
  6. Step 6: Final answer
    x = 1,778,358.83

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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.