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Finding the Fourth Proportional to 452,783.36, 625,032.60 and 305,640.32

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Solution

The fourth proportional to 452,783.36, 625,032.60 and 305,640.32 is: 421,912.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,783.36 : 625,032.60 = 305,640.32 : x
  2. Step 2: Convert to fraction form
    452,783.36/625,032.60 = 305,640.32/x
  3. Step 3: Cross multiply
    452,783.36x = 625,032.60 × 305,640.32
  4. Step 4: Simplify right side
    452,783.36x = 191,035,163,874.43
  5. Step 5: Solve for x
    x = 191,035,163,874.43/452,783.36
  6. Step 6: Final answer
    x = 421,912.95

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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.