Home / 764,040.65-1,146,290.13-308,397.42

Finding the Fourth Proportional to 764,040.65, 1,146,290.13 and 308,397.42

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Solution

The fourth proportional to 764,040.65, 1,146,290.13 and 308,397.42 is: 462,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,040.65 : 1,146,290.13 = 308,397.42 : x
  2. Step 2: Convert to fraction form
    764,040.65/1,146,290.13 = 308,397.42/x
  3. Step 3: Cross multiply
    764,040.65x = 1,146,290.13 × 308,397.42
  4. Step 4: Simplify right side
    764,040.65x = 353,512,918,663.47
  5. Step 5: Solve for x
    x = 353,512,918,663.47/764,040.65
  6. Step 6: Final answer
    x = 462,688.63

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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.