Home / 815,890.50-1,224,057.21-247,248.63

Finding the Fourth Proportional to 815,890.50, 1,224,057.21 and 247,248.63

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Solution

The fourth proportional to 815,890.50, 1,224,057.21 and 247,248.63 is: 370,940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,890.50 : 1,224,057.21 = 247,248.63 : x
  2. Step 2: Convert to fraction form
    815,890.50/1,224,057.21 = 247,248.63/x
  3. Step 3: Cross multiply
    815,890.50x = 1,224,057.21 × 247,248.63
  4. Step 4: Simplify right side
    815,890.50x = 302,646,468,214.12
  5. Step 5: Solve for x
    x = 302,646,468,214.12/815,890.50
  6. Step 6: Final answer
    x = 370,940.06

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Double scale
Find fourth proportional to 815,891.50, 1,224,058.71 and 247,249.63
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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.