Home / 620,939.10-929,552.13-380,295.21

Finding the Fourth Proportional to 620,939.10, 929,552.13 and 380,295.21

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Solution

The fourth proportional to 620,939.10, 929,552.13 and 380,295.21 is: 569,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,939.10 : 929,552.13 = 380,295.21 : x
  2. Step 2: Convert to fraction form
    620,939.10/929,552.13 = 380,295.21/x
  3. Step 3: Cross multiply
    620,939.10x = 929,552.13 × 380,295.21
  4. Step 4: Simplify right side
    620,939.10x = 353,504,222,484.30
  5. Step 5: Solve for x
    x = 353,504,222,484.30/620,939.10
  6. Step 6: Final answer
    x = 569,305.79

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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.