Home / 809,403.60-1,215,174.60-649,567.92

Finding the Fourth Proportional to 809,403.60, 1,215,174.60 and 649,567.92

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Solution

The fourth proportional to 809,403.60, 1,215,174.60 and 649,567.92 is: 975,209.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,403.60 : 1,215,174.60 = 649,567.92 : x
  2. Step 2: Convert to fraction form
    809,403.60/1,215,174.60 = 649,567.92/x
  3. Step 3: Cross multiply
    809,403.60x = 1,215,174.60 × 649,567.92
  4. Step 4: Simplify right side
    809,403.60x = 789,338,437,358.83
  5. Step 5: Solve for x
    x = 789,338,437,358.83/809,403.60
  6. Step 6: Final answer
    x = 975,209.94

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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.