Home / 679,155.26-1,018,879.88-205,876.31

Finding the Fourth Proportional to 679,155.26, 1,018,879.88 and 205,876.31

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Solution

The fourth proportional to 679,155.26, 1,018,879.88 and 205,876.31 is: 308,859.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,155.26 : 1,018,879.88 = 205,876.31 : x
  2. Step 2: Convert to fraction form
    679,155.26/1,018,879.88 = 205,876.31/x
  3. Step 3: Cross multiply
    679,155.26x = 1,018,879.88 × 205,876.31
  4. Step 4: Simplify right side
    679,155.26x = 209,763,223,903.86
  5. Step 5: Solve for x
    x = 209,763,223,903.86/679,155.26
  6. Step 6: Final answer
    x = 308,859.02

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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.