Home / 781,575.72-1,171,751.12-308,615.10

Finding the Fourth Proportional to 781,575.72, 1,171,751.12 and 308,615.10

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Solution

The fourth proportional to 781,575.72, 1,171,751.12 and 308,615.10 is: 462,680.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,575.72 : 1,171,751.12 = 308,615.10 : x
  2. Step 2: Convert to fraction form
    781,575.72/1,171,751.12 = 308,615.10/x
  3. Step 3: Cross multiply
    781,575.72x = 1,171,751.12 × 308,615.10
  4. Step 4: Simplify right side
    781,575.72x = 361,620,089,073.91
  5. Step 5: Solve for x
    x = 361,620,089,073.91/781,575.72
  6. Step 6: Final answer
    x = 462,680.81

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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.