Home / 819,400.90-1,229,101.35-483,477.70

Finding the Fourth Proportional to 819,400.90, 1,229,101.35 and 483,477.70

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Solution

The fourth proportional to 819,400.90, 1,229,101.35 and 483,477.70 is: 725,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,400.90 : 1,229,101.35 = 483,477.70 : x
  2. Step 2: Convert to fraction form
    819,400.90/1,229,101.35 = 483,477.70/x
  3. Step 3: Cross multiply
    819,400.90x = 1,229,101.35 × 483,477.70
  4. Step 4: Simplify right side
    819,400.90x = 594,243,093,764.90
  5. Step 5: Solve for x
    x = 594,243,093,764.90/819,400.90
  6. Step 6: Final answer
    x = 725,216.55

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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.