Home / 386,630.20-579,945.30-358,636.60

Finding the Fourth Proportional to 386,630.20, 579,945.30 and 358,636.60

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Solution

The fourth proportional to 386,630.20, 579,945.30 and 358,636.60 is: 537,954.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,630.20 : 579,945.30 = 358,636.60 : x
  2. Step 2: Convert to fraction form
    386,630.20/579,945.30 = 358,636.60/x
  3. Step 3: Cross multiply
    386,630.20x = 579,945.30 × 358,636.60
  4. Step 4: Simplify right side
    386,630.20x = 207,989,610,577.98
  5. Step 5: Solve for x
    x = 207,989,610,577.98/386,630.20
  6. Step 6: Final answer
    x = 537,954.90

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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.