Home / 389,399.58-537,614.70-298,581.09

Finding the Fourth Proportional to 389,399.58, 537,614.70 and 298,581.09

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Solution

The fourth proportional to 389,399.58, 537,614.70 and 298,581.09 is: 412,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,399.58 : 537,614.70 = 298,581.09 : x
  2. Step 2: Convert to fraction form
    389,399.58/537,614.70 = 298,581.09/x
  3. Step 3: Cross multiply
    389,399.58x = 537,614.70 × 298,581.09
  4. Step 4: Simplify right side
    389,399.58x = 160,521,583,126.02
  5. Step 5: Solve for x
    x = 160,521,583,126.02/389,399.58
  6. Step 6: Final answer
    x = 412,228.44

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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.