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Finding the Fourth Proportional to 505,072.29, 697,014.45 and 275,644.33

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Solution

The fourth proportional to 505,072.29, 697,014.45 and 275,644.33 is: 380,397.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,072.29 : 697,014.45 = 275,644.33 : x
  2. Step 2: Convert to fraction form
    505,072.29/697,014.45 = 275,644.33/x
  3. Step 3: Cross multiply
    505,072.29x = 697,014.45 × 275,644.33
  4. Step 4: Simplify right side
    505,072.29x = 192,128,076,207.28
  5. Step 5: Solve for x
    x = 192,128,076,207.28/505,072.29
  6. Step 6: Final answer
    x = 380,397.18

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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.