Home / 465,768.20-699,497.10-407,707.40

Finding the Fourth Proportional to 465,768.20, 699,497.10 and 407,707.40

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Solution

The fourth proportional to 465,768.20, 699,497.10 and 407,707.40 is: 612,300.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,768.20 : 699,497.10 = 407,707.40 : x
  2. Step 2: Convert to fraction form
    465,768.20/699,497.10 = 407,707.40/x
  3. Step 3: Cross multiply
    465,768.20x = 699,497.10 × 407,707.40
  4. Step 4: Simplify right side
    465,768.20x = 285,190,143,948.54
  5. Step 5: Solve for x
    x = 285,190,143,948.54/465,768.20
  6. Step 6: Final answer
    x = 612,300.59

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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.