Home / 901,427.68-1,243,884.90-538,778.80

Finding the Fourth Proportional to 901,427.68, 1,243,884.90 and 538,778.80

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Solution

The fourth proportional to 901,427.68, 1,243,884.90 and 538,778.80 is: 743,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,427.68 : 1,243,884.90 = 538,778.80 : x
  2. Step 2: Convert to fraction form
    901,427.68/1,243,884.90 = 538,778.80/x
  3. Step 3: Cross multiply
    901,427.68x = 1,243,884.90 × 538,778.80
  4. Step 4: Simplify right side
    901,427.68x = 670,178,813,760.12
  5. Step 5: Solve for x
    x = 670,178,813,760.12/901,427.68
  6. Step 6: Final answer
    x = 743,463.76

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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.