Home / 385,790.40-579,059.13-186,250.86

Finding the Fourth Proportional to 385,790.40, 579,059.13 and 186,250.86

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Solution

The fourth proportional to 385,790.40, 579,059.13 and 186,250.86 is: 279,556.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,790.40 : 579,059.13 = 186,250.86 : x
  2. Step 2: Convert to fraction form
    385,790.40/579,059.13 = 186,250.86/x
  3. Step 3: Cross multiply
    385,790.40x = 579,059.13 × 186,250.86
  4. Step 4: Simplify right side
    385,790.40x = 107,850,260,953.35
  5. Step 5: Solve for x
    x = 107,850,260,953.35/385,790.40
  6. Step 6: Final answer
    x = 279,556.62

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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.