Home / 819,330.40-1,228,995.60-483,407.20

Finding the Fourth Proportional to 819,330.40, 1,228,995.60 and 483,407.20

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Solution

The fourth proportional to 819,330.40, 1,228,995.60 and 483,407.20 is: 725,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,330.40 : 1,228,995.60 = 483,407.20 : x
  2. Step 2: Convert to fraction form
    819,330.40/1,228,995.60 = 483,407.20/x
  3. Step 3: Cross multiply
    819,330.40x = 1,228,995.60 × 483,407.20
  4. Step 4: Simplify right side
    819,330.40x = 594,105,321,808.32
  5. Step 5: Solve for x
    x = 594,105,321,808.32/819,330.40
  6. Step 6: Final answer
    x = 725,110.80

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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.