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Finding the Fourth Proportional to 478,440.06, 660,245.74 and 263,578.24

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Solution

The fourth proportional to 478,440.06, 660,245.74 and 263,578.24 is: 363,737.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,440.06 : 660,245.74 = 263,578.24 : x
  2. Step 2: Convert to fraction form
    478,440.06/660,245.74 = 263,578.24/x
  3. Step 3: Cross multiply
    478,440.06x = 660,245.74 × 263,578.24
  4. Step 4: Simplify right side
    478,440.06x = 174,026,410,116.70
  5. Step 5: Solve for x
    x = 174,026,410,116.70/478,440.06
  6. Step 6: Final answer
    x = 363,737.12

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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.