Home / 814,200.30-1,221,300.45-731,531.70

Finding the Fourth Proportional to 814,200.30, 1,221,300.45 and 731,531.70

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Solution

The fourth proportional to 814,200.30, 1,221,300.45 and 731,531.70 is: 1,097,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,200.30 : 1,221,300.45 = 731,531.70 : x
  2. Step 2: Convert to fraction form
    814,200.30/1,221,300.45 = 731,531.70/x
  3. Step 3: Cross multiply
    814,200.30x = 1,221,300.45 × 731,531.70
  4. Step 4: Simplify right side
    814,200.30x = 893,419,994,399.27
  5. Step 5: Solve for x
    x = 893,419,994,399.27/814,200.30
  6. Step 6: Final answer
    x = 1,097,297.55

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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.