Home / 835,412.78-1,251,433.73-385,508.61

Finding the Fourth Proportional to 835,412.78, 1,251,433.73 and 385,508.61

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Solution

The fourth proportional to 835,412.78, 1,251,433.73 and 385,508.61 is: 577,485.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,412.78 : 1,251,433.73 = 385,508.61 : x
  2. Step 2: Convert to fraction form
    835,412.78/1,251,433.73 = 385,508.61/x
  3. Step 3: Cross multiply
    835,412.78x = 1,251,433.73 × 385,508.61
  4. Step 4: Simplify right side
    835,412.78x = 482,438,478,723.19
  5. Step 5: Solve for x
    x = 482,438,478,723.19/835,412.78
  6. Step 6: Final answer
    x = 577,485.15

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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.