Home / 813,670.48-1,122,832.20-451,099.60

Finding the Fourth Proportional to 813,670.48, 1,122,832.20 and 451,099.60

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Solution

The fourth proportional to 813,670.48, 1,122,832.20 and 451,099.60 is: 622,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,670.48 : 1,122,832.20 = 451,099.60 : x
  2. Step 2: Convert to fraction form
    813,670.48/1,122,832.20 = 451,099.60/x
  3. Step 3: Cross multiply
    813,670.48x = 1,122,832.20 × 451,099.60
  4. Step 4: Simplify right side
    813,670.48x = 506,509,156,287.12
  5. Step 5: Solve for x
    x = 506,509,156,287.12/813,670.48
  6. Step 6: Final answer
    x = 622,499.12

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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.