Home / 1,690,345.44-2,535,610.56-428,184

Finding the Fourth Proportional to 1,690,345.44, 2,535,610.56 and 428,184

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Solution

The fourth proportional to 1,690,345.44, 2,535,610.56 and 428,184 is: 642,299.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,345.44 : 2,535,610.56 = 428,184 : x
  2. Step 2: Convert to fraction form
    1,690,345.44/2,535,610.56 = 428,184/x
  3. Step 3: Cross multiply
    1,690,345.44x = 2,535,610.56 × 428,184
  4. Step 4: Simplify right side
    1,690,345.44x = 1,085,707,872,023.04
  5. Step 5: Solve for x
    x = 1,085,707,872,023.04/1,690,345.44
  6. Step 6: Final answer
    x = 642,299.41

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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.