Home / 1,078,889.80-1,618,917.90-479,943.40

Finding the Fourth Proportional to 1,078,889.80, 1,618,917.90 and 479,943.40

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Solution

The fourth proportional to 1,078,889.80, 1,618,917.90 and 479,943.40 is: 720,174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,889.80 : 1,618,917.90 = 479,943.40 : x
  2. Step 2: Convert to fraction form
    1,078,889.80/1,618,917.90 = 479,943.40/x
  3. Step 3: Cross multiply
    1,078,889.80x = 1,618,917.90 × 479,943.40
  4. Step 4: Simplify right side
    1,078,889.80x = 776,988,961,246.86
  5. Step 5: Solve for x
    x = 776,988,961,246.86/1,078,889.80
  6. Step 6: Final answer
    x = 720,174.54

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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.