Home / 820,934.32-1,232,010.96-621,505.84

Finding the Fourth Proportional to 820,934.32, 1,232,010.96 and 621,505.84

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Solution

The fourth proportional to 820,934.32, 1,232,010.96 and 621,505.84 is: 932,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,934.32 : 1,232,010.96 = 621,505.84 : x
  2. Step 2: Convert to fraction form
    820,934.32/1,232,010.96 = 621,505.84/x
  3. Step 3: Cross multiply
    820,934.32x = 1,232,010.96 × 621,505.84
  4. Step 4: Simplify right side
    820,934.32x = 765,702,006,584.01
  5. Step 5: Solve for x
    x = 765,702,006,584.01/820,934.32
  6. Step 6: Final answer
    x = 932,720.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.