Home / 813,945.02-1,123,301.70-451,403.60

Finding the Fourth Proportional to 813,945.02, 1,123,301.70 and 451,403.60

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Solution

The fourth proportional to 813,945.02, 1,123,301.70 and 451,403.60 is: 622,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,945.02 : 1,123,301.70 = 451,403.60 : x
  2. Step 2: Convert to fraction form
    813,945.02/1,123,301.70 = 451,403.60/x
  3. Step 3: Cross multiply
    813,945.02x = 1,123,301.70 × 451,403.60
  4. Step 4: Simplify right side
    813,945.02x = 507,062,431,266.12
  5. Step 5: Solve for x
    x = 507,062,431,266.12/813,945.02
  6. Step 6: Final answer
    x = 622,968.90

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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.