Home / 1,185,391.18-1,777,887.88-427,091.30

Finding the Fourth Proportional to 1,185,391.18, 1,777,887.88 and 427,091.30

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Solution

The fourth proportional to 1,185,391.18, 1,777,887.88 and 427,091.30 is: 640,565.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,391.18 : 1,777,887.88 = 427,091.30 : x
  2. Step 2: Convert to fraction form
    1,185,391.18/1,777,887.88 = 427,091.30/x
  3. Step 3: Cross multiply
    1,185,391.18x = 1,777,887.88 × 427,091.30
  4. Step 4: Simplify right side
    1,185,391.18x = 759,320,445,035.75
  5. Step 5: Solve for x
    x = 759,320,445,035.75/1,185,391.18
  6. Step 6: Final answer
    x = 640,565.29

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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.