Home / 820,145.16-1,131,774.66-480,839.40

Finding the Fourth Proportional to 820,145.16, 1,131,774.66 and 480,839.40

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Solution

The fourth proportional to 820,145.16, 1,131,774.66 and 480,839.40 is: 663,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,145.16 : 1,131,774.66 = 480,839.40 : x
  2. Step 2: Convert to fraction form
    820,145.16/1,131,774.66 = 480,839.40/x
  3. Step 3: Cross multiply
    820,145.16x = 1,131,774.66 × 480,839.40
  4. Step 4: Simplify right side
    820,145.16x = 544,201,848,449.60
  5. Step 5: Solve for x
    x = 544,201,848,449.60/820,145.16
  6. Step 6: Final answer
    x = 663,543.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.