Home / 812,039.10-1,217,943.45-251,130.30

Finding the Fourth Proportional to 812,039.10, 1,217,943.45 and 251,130.30

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Solution

The fourth proportional to 812,039.10, 1,217,943.45 and 251,130.30 is: 376,659.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,039.10 : 1,217,943.45 = 251,130.30 : x
  2. Step 2: Convert to fraction form
    812,039.10/1,217,943.45 = 251,130.30/x
  3. Step 3: Cross multiply
    812,039.10x = 1,217,943.45 × 251,130.30
  4. Step 4: Simplify right side
    812,039.10x = 305,862,503,981.54
  5. Step 5: Solve for x
    x = 305,862,503,981.54/812,039.10
  6. Step 6: Final answer
    x = 376,659.82

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1.5x scale

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.