Home / 807,669.20-1,210,191.60-673,824.80

Finding the Fourth Proportional to 807,669.20, 1,210,191.60 and 673,824.80

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Solution

The fourth proportional to 807,669.20, 1,210,191.60 and 673,824.80 is: 1,009,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,669.20 : 1,210,191.60 = 673,824.80 : x
  2. Step 2: Convert to fraction form
    807,669.20/1,210,191.60 = 673,824.80/x
  3. Step 3: Cross multiply
    807,669.20x = 1,210,191.60 × 673,824.80
  4. Step 4: Simplify right side
    807,669.20x = 815,457,112,831.68
  5. Step 5: Solve for x
    x = 815,457,112,831.68/807,669.20
  6. Step 6: Final answer
    x = 1,009,642.45

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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.