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Finding the Fourth Proportional to 633,664.56, 874,320.96 and 375,622.80

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Solution

The fourth proportional to 633,664.56, 874,320.96 and 375,622.80 is: 518,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,664.56 : 874,320.96 = 375,622.80 : x
  2. Step 2: Convert to fraction form
    633,664.56/874,320.96 = 375,622.80/x
  3. Step 3: Cross multiply
    633,664.56x = 874,320.96 × 375,622.80
  4. Step 4: Simplify right side
    633,664.56x = 328,414,887,093.89
  5. Step 5: Solve for x
    x = 328,414,887,093.89/633,664.56
  6. Step 6: Final answer
    x = 518,278.77

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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.