Home / 764,042.15-1,146,292.38-308,398.92

Finding the Fourth Proportional to 764,042.15, 1,146,292.38 and 308,398.92

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Solution

The fourth proportional to 764,042.15, 1,146,292.38 and 308,398.92 is: 462,690.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,042.15 : 1,146,292.38 = 308,398.92 : x
  2. Step 2: Convert to fraction form
    764,042.15/1,146,292.38 = 308,398.92/x
  3. Step 3: Cross multiply
    764,042.15x = 1,146,292.38 × 308,398.92
  4. Step 4: Simplify right side
    764,042.15x = 353,515,331,996.23
  5. Step 5: Solve for x
    x = 353,515,331,996.23/764,042.15
  6. Step 6: Final answer
    x = 462,690.88

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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.