Home / 880,422.98-1,320,917.90-400,822.38

Finding the Fourth Proportional to 880,422.98, 1,320,917.90 and 400,822.38

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Solution

The fourth proportional to 880,422.98, 1,320,917.90 and 400,822.38 is: 601,362.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,422.98 : 1,320,917.90 = 400,822.38 : x
  2. Step 2: Convert to fraction form
    880,422.98/1,320,917.90 = 400,822.38/x
  3. Step 3: Cross multiply
    880,422.98x = 1,320,917.90 × 400,822.38
  4. Step 4: Simplify right side
    880,422.98x = 529,453,454,458.49
  5. Step 5: Solve for x
    x = 529,453,454,458.49/880,422.98
  6. Step 6: Final answer
    x = 601,362.61

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1.5x scale

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.