Home / 780,403.25-1,170,067.03-307,142.93

Finding the Fourth Proportional to 780,403.25, 1,170,067.03 and 307,142.93

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Solution

The fourth proportional to 780,403.25, 1,170,067.03 and 307,142.93 is: 460,502.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,403.25 : 1,170,067.03 = 307,142.93 : x
  2. Step 2: Convert to fraction form
    780,403.25/1,170,067.03 = 307,142.93/x
  3. Step 3: Cross multiply
    780,403.25x = 1,170,067.03 × 307,142.93
  4. Step 4: Simplify right side
    780,403.25x = 359,377,815,890.60
  5. Step 5: Solve for x
    x = 359,377,815,890.60/780,403.25
  6. Step 6: Final answer
    x = 460,502.72

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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.