Home / 523,739.12-784,058.64-323,415.38

Finding the Fourth Proportional to 523,739.12, 784,058.64 and 323,415.38

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Solution

The fourth proportional to 523,739.12, 784,058.64 and 323,415.38 is: 484,165.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,739.12 : 784,058.64 = 323,415.38 : x
  2. Step 2: Convert to fraction form
    523,739.12/784,058.64 = 323,415.38/x
  3. Step 3: Cross multiply
    523,739.12x = 784,058.64 × 323,415.38
  4. Step 4: Simplify right side
    523,739.12x = 253,576,623,745.22
  5. Step 5: Solve for x
    x = 253,576,623,745.22/523,739.12
  6. Step 6: Final answer
    x = 484,165.91

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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.