Home / 813,310.21-1,122,368.08-450,788.56

Finding the Fourth Proportional to 813,310.21, 1,122,368.08 and 450,788.56

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Solution

The fourth proportional to 813,310.21, 1,122,368.08 and 450,788.56 is: 622,088.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,310.21 : 1,122,368.08 = 450,788.56 : x
  2. Step 2: Convert to fraction form
    813,310.21/1,122,368.08 = 450,788.56/x
  3. Step 3: Cross multiply
    813,310.21x = 1,122,368.08 × 450,788.56
  4. Step 4: Simplify right side
    813,310.21x = 505,950,690,573.17
  5. Step 5: Solve for x
    x = 505,950,690,573.17/813,310.21
  6. Step 6: Final answer
    x = 622,088.21

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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.