Home / 814,388.16-1,123,990.57-451,928.45

Finding the Fourth Proportional to 814,388.16, 1,123,990.57 and 451,928.45

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Solution

The fourth proportional to 814,388.16, 1,123,990.57 and 451,928.45 is: 623,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,388.16 : 1,123,990.57 = 451,928.45 : x
  2. Step 2: Convert to fraction form
    814,388.16/1,123,990.57 = 451,928.45/x
  3. Step 3: Cross multiply
    814,388.16x = 1,123,990.57 × 451,928.45
  4. Step 4: Simplify right side
    814,388.16x = 507,963,319,489.60
  5. Step 5: Solve for x
    x = 507,963,319,489.60/814,388.16
  6. Step 6: Final answer
    x = 623,736.13

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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.