Home / 829,892.20-1,242,764.70-664,004.20

Finding the Fourth Proportional to 829,892.20, 1,242,764.70 and 664,004.20

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Solution

The fourth proportional to 829,892.20, 1,242,764.70 and 664,004.20 is: 994,347.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,892.20 : 1,242,764.70 = 664,004.20 : x
  2. Step 2: Convert to fraction form
    829,892.20/1,242,764.70 = 664,004.20/x
  3. Step 3: Cross multiply
    829,892.20x = 1,242,764.70 × 664,004.20
  4. Step 4: Simplify right side
    829,892.20x = 825,200,980,411.74
  5. Step 5: Solve for x
    x = 825,200,980,411.74/829,892.20
  6. Step 6: Final answer
    x = 994,347.19

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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.