Home / 716,229.46-988,415.36-393,948.02

Finding the Fourth Proportional to 716,229.46, 988,415.36 and 393,948.02

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Solution

The fourth proportional to 716,229.46, 988,415.36 and 393,948.02 is: 543,658.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,229.46 : 988,415.36 = 393,948.02 : x
  2. Step 2: Convert to fraction form
    716,229.46/988,415.36 = 393,948.02/x
  3. Step 3: Cross multiply
    716,229.46x = 988,415.36 × 393,948.02
  4. Step 4: Simplify right side
    716,229.46x = 389,384,274,009.59
  5. Step 5: Solve for x
    x = 389,384,274,009.59/716,229.46
  6. Step 6: Final answer
    x = 543,658.56

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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.