Home / 764,042.52-1,146,292.95-308,399.30

Finding the Fourth Proportional to 764,042.52, 1,146,292.95 and 308,399.30

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Solution

The fourth proportional to 764,042.52, 1,146,292.95 and 308,399.30 is: 462,691.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,042.52 : 1,146,292.95 = 308,399.30 : x
  2. Step 2: Convert to fraction form
    764,042.52/1,146,292.95 = 308,399.30/x
  3. Step 3: Cross multiply
    764,042.52x = 1,146,292.95 × 308,399.30
  4. Step 4: Simplify right side
    764,042.52x = 353,515,937,643.47
  5. Step 5: Solve for x
    x = 353,515,937,643.47/764,042.52
  6. Step 6: Final answer
    x = 462,691.45

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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.