Home / 821,824.25-1,233,013.23-517,865.47

Finding the Fourth Proportional to 821,824.25, 1,233,013.23 and 517,865.47

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Solution

The fourth proportional to 821,824.25, 1,233,013.23 and 517,865.47 is: 776,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,824.25 : 1,233,013.23 = 517,865.47 : x
  2. Step 2: Convert to fraction form
    821,824.25/1,233,013.23 = 517,865.47/x
  3. Step 3: Cross multiply
    821,824.25x = 1,233,013.23 × 517,865.47
  4. Step 4: Simplify right side
    821,824.25x = 638,534,975,870.17
  5. Step 5: Solve for x
    x = 638,534,975,870.17/821,824.25
  6. Step 6: Final answer
    x = 776,972.66

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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.