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Finding the Fourth Proportional to 478,650.34, 660,568.62 and 274,767.25

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Solution

The fourth proportional to 478,650.34, 660,568.62 and 274,767.25 is: 379,196.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,650.34 : 660,568.62 = 274,767.25 : x
  2. Step 2: Convert to fraction form
    478,650.34/660,568.62 = 274,767.25/x
  3. Step 3: Cross multiply
    478,650.34x = 660,568.62 × 274,767.25
  4. Step 4: Simplify right side
    478,650.34x = 181,502,623,153.70
  5. Step 5: Solve for x
    x = 181,502,623,153.70/478,650.34
  6. Step 6: Final answer
    x = 379,196.69

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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.