Home / 811,007.22-1,216,234.02-331,160.28

Finding the Fourth Proportional to 811,007.22, 1,216,234.02 and 331,160.28

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Solution

The fourth proportional to 811,007.22, 1,216,234.02 and 331,160.28 is: 496,627.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,007.22 : 1,216,234.02 = 331,160.28 : x
  2. Step 2: Convert to fraction form
    811,007.22/1,216,234.02 = 331,160.28/x
  3. Step 3: Cross multiply
    811,007.22x = 1,216,234.02 × 331,160.28
  4. Step 4: Simplify right side
    811,007.22x = 402,768,398,608.73
  5. Step 5: Solve for x
    x = 402,768,398,608.73/811,007.22
  6. Step 6: Final answer
    x = 496,627.39

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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.