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Finding the Fourth Proportional to 455,957.79, 629,254.33 and 252,004.32

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Solution

The fourth proportional to 455,957.79, 629,254.33 and 252,004.32 is: 347,783.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,957.79 : 629,254.33 = 252,004.32 : x
  2. Step 2: Convert to fraction form
    455,957.79/629,254.33 = 252,004.32/x
  3. Step 3: Cross multiply
    455,957.79x = 629,254.33 × 252,004.32
  4. Step 4: Simplify right side
    455,957.79x = 158,574,808,278.68
  5. Step 5: Solve for x
    x = 158,574,808,278.68/455,957.79
  6. Step 6: Final answer
    x = 347,783.97

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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.