Home / 814,244.30-1,221,366.45-761,756.30

Finding the Fourth Proportional to 814,244.30, 1,221,366.45 and 761,756.30

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Solution

The fourth proportional to 814,244.30, 1,221,366.45 and 761,756.30 is: 1,142,634.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,244.30 : 1,221,366.45 = 761,756.30 : x
  2. Step 2: Convert to fraction form
    814,244.30/1,221,366.45 = 761,756.30/x
  3. Step 3: Cross multiply
    814,244.30x = 1,221,366.45 × 761,756.30
  4. Step 4: Simplify right side
    814,244.30x = 930,383,587,896.14
  5. Step 5: Solve for x
    x = 930,383,587,896.14/814,244.30
  6. Step 6: Final answer
    x = 1,142,634.45

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Double scale
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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.