Home / 813,201.25-1,122,224.32-450,631.16

Finding the Fourth Proportional to 813,201.25, 1,122,224.32 and 450,631.16

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Solution

The fourth proportional to 813,201.25, 1,122,224.32 and 450,631.16 is: 621,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,201.25 : 1,122,224.32 = 450,631.16 : x
  2. Step 2: Convert to fraction form
    813,201.25/1,122,224.32 = 450,631.16/x
  3. Step 3: Cross multiply
    813,201.25x = 1,122,224.32 × 450,631.16
  4. Step 4: Simplify right side
    813,201.25x = 505,709,246,262.32
  5. Step 5: Solve for x
    x = 505,709,246,262.32/813,201.25
  6. Step 6: Final answer
    x = 621,874.65

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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.