Home / 780,981.46-1,171,866.51-354,245.31

Finding the Fourth Proportional to 780,981.46, 1,171,866.51 and 354,245.31

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Solution

The fourth proportional to 780,981.46, 1,171,866.51 and 354,245.31 is: 531,546.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,981.46 : 1,171,866.51 = 354,245.31 : x
  2. Step 2: Convert to fraction form
    780,981.46/1,171,866.51 = 354,245.31/x
  3. Step 3: Cross multiply
    780,981.46x = 1,171,866.51 × 354,245.31
  4. Step 4: Simplify right side
    780,981.46x = 415,128,207,483.01
  5. Step 5: Solve for x
    x = 415,128,207,483.01/780,981.46
  6. Step 6: Final answer
    x = 531,546.81

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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.