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Finding the Fourth Proportional to 478,474.02, 660,222.09 and 271,710.18

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Solution

The fourth proportional to 478,474.02, 660,222.09 and 271,710.18 is: 374,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,474.02 : 660,222.09 = 271,710.18 : x
  2. Step 2: Convert to fraction form
    478,474.02/660,222.09 = 271,710.18/x
  3. Step 3: Cross multiply
    478,474.02x = 660,222.09 × 271,710.18
  4. Step 4: Simplify right side
    478,474.02x = 179,389,062,913.88
  5. Step 5: Solve for x
    x = 179,389,062,913.88/478,474.02
  6. Step 6: Final answer
    x = 374,919.13

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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.