Home / 389,399.08-537,614-298,580.58

Finding the Fourth Proportional to 389,399.08, 537,614 and 298,580.58

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Solution

The fourth proportional to 389,399.08, 537,614 and 298,580.58 is: 412,227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,399.08 : 537,614 = 298,580.58 : x
  2. Step 2: Convert to fraction form
    389,399.08/537,614 = 298,580.58/x
  3. Step 3: Cross multiply
    389,399.08x = 537,614 × 298,580.58
  4. Step 4: Simplify right side
    389,399.08x = 160,521,099,936.12
  5. Step 5: Solve for x
    x = 160,521,099,936.12/389,399.08
  6. Step 6: Final answer
    x = 412,227.73

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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.