Home / 821,980.50-1,232,970.76-231,004.50

Finding the Fourth Proportional to 821,980.50, 1,232,970.76 and 231,004.50

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Solution

The fourth proportional to 821,980.50, 1,232,970.76 and 231,004.50 is: 346,506.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,980.50 : 1,232,970.76 = 231,004.50 : x
  2. Step 2: Convert to fraction form
    821,980.50/1,232,970.76 = 231,004.50/x
  3. Step 3: Cross multiply
    821,980.50x = 1,232,970.76 × 231,004.50
  4. Step 4: Simplify right side
    821,980.50x = 284,821,793,928.42
  5. Step 5: Solve for x
    x = 284,821,793,928.42/821,980.50
  6. Step 6: Final answer
    x = 346,506.75

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Similar ratio
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1.5x scale

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.