Home / 830,414.87-1,245,179.42-430,062.65

Finding the Fourth Proportional to 830,414.87, 1,245,179.42 and 430,062.65

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Solution

The fourth proportional to 830,414.87, 1,245,179.42 and 430,062.65 is: 644,864.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,414.87 : 1,245,179.42 = 430,062.65 : x
  2. Step 2: Convert to fraction form
    830,414.87/1,245,179.42 = 430,062.65/x
  3. Step 3: Cross multiply
    830,414.87x = 1,245,179.42 × 430,062.65
  4. Step 4: Simplify right side
    830,414.87x = 535,505,161,090.66
  5. Step 5: Solve for x
    x = 535,505,161,090.66/830,414.87
  6. Step 6: Final answer
    x = 644,864.61

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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.