Home / 4,278,128.28-6,418,001.64-1,719,542.40

Finding the Fourth Proportional to 4,278,128.28, 6,418,001.64 and 1,719,542.40

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Solution

The fourth proportional to 4,278,128.28, 6,418,001.64 and 1,719,542.40 is: 2,579,638.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278,128.28 : 6,418,001.64 = 1,719,542.40 : x
  2. Step 2: Convert to fraction form
    4,278,128.28/6,418,001.64 = 1,719,542.40/x
  3. Step 3: Cross multiply
    4,278,128.28x = 6,418,001.64 × 1,719,542.40
  4. Step 4: Simplify right side
    4,278,128.28x = 11,036,025,943,249.54
  5. Step 5: Solve for x
    x = 11,036,025,943,249.54/4,278,128.28
  6. Step 6: Final answer
    x = 2,579,638.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.