Home / 1,238,565.24-1,857,401.96-428,729.62

Finding the Fourth Proportional to 1,238,565.24, 1,857,401.96 and 428,729.62

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Solution

The fourth proportional to 1,238,565.24, 1,857,401.96 and 428,729.62 is: 642,940.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,565.24 : 1,857,401.96 = 428,729.62 : x
  2. Step 2: Convert to fraction form
    1,238,565.24/1,857,401.96 = 428,729.62/x
  3. Step 3: Cross multiply
    1,238,565.24x = 1,857,401.96 × 428,729.62
  4. Step 4: Simplify right side
    1,238,565.24x = 796,323,236,498.06
  5. Step 5: Solve for x
    x = 796,323,236,498.06/1,238,565.24
  6. Step 6: Final answer
    x = 642,940.08

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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.