Home / 764,543.78-1,146,953.96-315,014.59

Finding the Fourth Proportional to 764,543.78, 1,146,953.96 and 315,014.59

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Solution

The fourth proportional to 764,543.78, 1,146,953.96 and 315,014.59 is: 472,578.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,543.78 : 1,146,953.96 = 315,014.59 : x
  2. Step 2: Convert to fraction form
    764,543.78/1,146,953.96 = 315,014.59/x
  3. Step 3: Cross multiply
    764,543.78x = 1,146,953.96 × 315,014.59
  4. Step 4: Simplify right side
    764,543.78x = 361,307,224,148.43
  5. Step 5: Solve for x
    x = 361,307,224,148.43/764,543.78
  6. Step 6: Final answer
    x = 472,578.86

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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.