Home / 389,402.08-537,618.14-298,583.58

Finding the Fourth Proportional to 389,402.08, 537,618.14 and 298,583.58

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Solution

The fourth proportional to 389,402.08, 537,618.14 and 298,583.58 is: 412,231.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,402.08 : 537,618.14 = 298,583.58 : x
  2. Step 2: Convert to fraction form
    389,402.08/537,618.14 = 298,583.58/x
  3. Step 3: Cross multiply
    389,402.08x = 537,618.14 × 298,583.58
  4. Step 4: Simplify right side
    389,402.08x = 160,523,948,914.14
  5. Step 5: Solve for x
    x = 160,523,948,914.14/389,402.08
  6. Step 6: Final answer
    x = 412,231.87

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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.