Home / 863,149.36-1,191,151.22-500,788.98

Finding the Fourth Proportional to 863,149.36, 1,191,151.22 and 500,788.98

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Solution

The fourth proportional to 863,149.36, 1,191,151.22 and 500,788.98 is: 691,091.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,149.36 : 1,191,151.22 = 500,788.98 : x
  2. Step 2: Convert to fraction form
    863,149.36/1,191,151.22 = 500,788.98/x
  3. Step 3: Cross multiply
    863,149.36x = 1,191,151.22 × 500,788.98
  4. Step 4: Simplify right side
    863,149.36x = 596,515,398,533.80
  5. Step 5: Solve for x
    x = 596,515,398,533.80/863,149.36
  6. Step 6: Final answer
    x = 691,091.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.