Home / 722,879.78-997,579.87-400,595.22

Finding the Fourth Proportional to 722,879.78, 997,579.87 and 400,595.22

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Solution

The fourth proportional to 722,879.78, 997,579.87 and 400,595.22 is: 552,824.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,879.78 : 997,579.87 = 400,595.22 : x
  2. Step 2: Convert to fraction form
    722,879.78/997,579.87 = 400,595.22/x
  3. Step 3: Cross multiply
    722,879.78x = 997,579.87 × 400,595.22
  4. Step 4: Simplify right side
    722,879.78x = 399,625,726,488.73
  5. Step 5: Solve for x
    x = 399,625,726,488.73/722,879.78
  6. Step 6: Final answer
    x = 552,824.61

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1.5x scale

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.