Home / 814,407.16-1,221,020.10-547,505.56

Finding the Fourth Proportional to 814,407.16, 1,221,020.10 and 547,505.56

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Solution

The fourth proportional to 814,407.16, 1,221,020.10 and 547,505.56 is: 820,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,407.16 : 1,221,020.10 = 547,505.56 : x
  2. Step 2: Convert to fraction form
    814,407.16/1,221,020.10 = 547,505.56/x
  3. Step 3: Cross multiply
    814,407.16x = 1,221,020.10 × 547,505.56
  4. Step 4: Simplify right side
    814,407.16x = 668,515,293,621.76
  5. Step 5: Solve for x
    x = 668,515,293,621.76/814,407.16
  6. Step 6: Final answer
    x = 820,861.27

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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.