Home / 820,493.39-1,230,102.81-531,694.95

Finding the Fourth Proportional to 820,493.39, 1,230,102.81 and 531,694.95

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Solution

The fourth proportional to 820,493.39, 1,230,102.81 and 531,694.95 is: 797,129.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,493.39 : 1,230,102.81 = 531,694.95 : x
  2. Step 2: Convert to fraction form
    820,493.39/1,230,102.81 = 531,694.95/x
  3. Step 3: Cross multiply
    820,493.39x = 1,230,102.81 × 531,694.95
  4. Step 4: Simplify right side
    820,493.39x = 654,039,452,057.81
  5. Step 5: Solve for x
    x = 654,039,452,057.81/820,493.39
  6. Step 6: Final answer
    x = 797,129.46

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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.