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Finding the Fourth Proportional to 478,652.34, 660,571.41 and 274,769.28

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Solution

The fourth proportional to 478,652.34, 660,571.41 and 274,769.28 is: 379,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,652.34 : 660,571.41 = 274,769.28 : x
  2. Step 2: Convert to fraction form
    478,652.34/660,571.41 = 274,769.28/x
  3. Step 3: Cross multiply
    478,652.34x = 660,571.41 × 274,769.28
  4. Step 4: Simplify right side
    478,652.34x = 181,504,730,714.29
  5. Step 5: Solve for x
    x = 181,504,730,714.29/478,652.34
  6. Step 6: Final answer
    x = 379,199.51

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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.