Home / 829,009.20-1,242,201.60-695,164.80

Finding the Fourth Proportional to 829,009.20, 1,242,201.60 and 695,164.80

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Solution

The fourth proportional to 829,009.20, 1,242,201.60 and 695,164.80 is: 1,041,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,009.20 : 1,242,201.60 = 695,164.80 : x
  2. Step 2: Convert to fraction form
    829,009.20/1,242,201.60 = 695,164.80/x
  3. Step 3: Cross multiply
    829,009.20x = 1,242,201.60 × 695,164.80
  4. Step 4: Simplify right side
    829,009.20x = 863,534,826,823.68
  5. Step 5: Solve for x
    x = 863,534,826,823.68/829,009.20
  6. Step 6: Final answer
    x = 1,041,646.86

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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.