Home / 814,228.80-1,221,343.20-731,560.20

Finding the Fourth Proportional to 814,228.80, 1,221,343.20 and 731,560.20

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Solution

The fourth proportional to 814,228.80, 1,221,343.20 and 731,560.20 is: 1,097,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,228.80 : 1,221,343.20 = 731,560.20 : x
  2. Step 2: Convert to fraction form
    814,228.80/1,221,343.20 = 731,560.20/x
  3. Step 3: Cross multiply
    814,228.80x = 1,221,343.20 × 731,560.20
  4. Step 4: Simplify right side
    814,228.80x = 893,486,075,660.64
  5. Step 5: Solve for x
    x = 893,486,075,660.64/814,228.80
  6. Step 6: Final answer
    x = 1,097,340.30

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Double scale
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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.