Home / 813,670.30-1,122,892.32-451,072.51

Finding the Fourth Proportional to 813,670.30, 1,122,892.32 and 451,072.51

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Solution

The fourth proportional to 813,670.30, 1,122,892.32 and 451,072.51 is: 622,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,670.30 : 1,122,892.32 = 451,072.51 : x
  2. Step 2: Convert to fraction form
    813,670.30/1,122,892.32 = 451,072.51/x
  3. Step 3: Cross multiply
    813,670.30x = 1,122,892.32 × 451,072.51
  4. Step 4: Simplify right side
    813,670.30x = 506,505,857,242.12
  5. Step 5: Solve for x
    x = 506,505,857,242.12/813,670.30
  6. Step 6: Final answer
    x = 622,495.20

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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.