Home / 807,665.20-1,210,185.60-673,820.80

Finding the Fourth Proportional to 807,665.20, 1,210,185.60 and 673,820.80

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Solution

The fourth proportional to 807,665.20, 1,210,185.60 and 673,820.80 is: 1,009,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,665.20 : 1,210,185.60 = 673,820.80 : x
  2. Step 2: Convert to fraction form
    807,665.20/1,210,185.60 = 673,820.80/x
  3. Step 3: Cross multiply
    807,665.20x = 1,210,185.60 × 673,820.80
  4. Step 4: Simplify right side
    807,665.20x = 815,448,229,140.48
  5. Step 5: Solve for x
    x = 815,448,229,140.48/807,665.20
  6. Step 6: Final answer
    x = 1,009,636.45

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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.