Home / 821,196.78-1,133,752.56-770,370.90

Finding the Fourth Proportional to 821,196.78, 1,133,752.56 and 770,370.90

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Solution

The fourth proportional to 821,196.78, 1,133,752.56 and 770,370.90 is: 1,063,581.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,196.78 : 1,133,752.56 = 770,370.90 : x
  2. Step 2: Convert to fraction form
    821,196.78/1,133,752.56 = 770,370.90/x
  3. Step 3: Cross multiply
    821,196.78x = 1,133,752.56 × 770,370.90
  4. Step 4: Simplify right side
    821,196.78x = 873,409,980,024.50
  5. Step 5: Solve for x
    x = 873,409,980,024.50/821,196.78
  6. Step 6: Final answer
    x = 1,063,581.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.