Home / 1,121,840.90-1,683,286.87-552,911.86

Finding the Fourth Proportional to 1,121,840.90, 1,683,286.87 and 552,911.86

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Solution

The fourth proportional to 1,121,840.90, 1,683,286.87 and 552,911.86 is: 829,626.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,840.90 : 1,683,286.87 = 552,911.86 : x
  2. Step 2: Convert to fraction form
    1,121,840.90/1,683,286.87 = 552,911.86/x
  3. Step 3: Cross multiply
    1,121,840.90x = 1,683,286.87 × 552,911.86
  4. Step 4: Simplify right side
    1,121,840.90x = 930,709,266,495.33
  5. Step 5: Solve for x
    x = 930,709,266,495.33/1,121,840.90
  6. Step 6: Final answer
    x = 829,626.79

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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.