Home / 813,840.90-1,122,997.23-446,221.35

Finding the Fourth Proportional to 813,840.90, 1,122,997.23 and 446,221.35

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Solution

The fourth proportional to 813,840.90, 1,122,997.23 and 446,221.35 is: 615,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,840.90 : 1,122,997.23 = 446,221.35 : x
  2. Step 2: Convert to fraction form
    813,840.90/1,122,997.23 = 446,221.35/x
  3. Step 3: Cross multiply
    813,840.90x = 1,122,997.23 × 446,221.35
  4. Step 4: Simplify right side
    813,840.90x = 501,105,340,016.86
  5. Step 5: Solve for x
    x = 501,105,340,016.86/813,840.90
  6. Step 6: Final answer
    x = 615,728.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.