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Finding the Fourth Proportional to 478,261.92, 660,006.16 and 263,408.60

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Solution

The fourth proportional to 478,261.92, 660,006.16 and 263,408.60 is: 363,506.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,261.92 : 660,006.16 = 263,408.60 : x
  2. Step 2: Convert to fraction form
    478,261.92/660,006.16 = 263,408.60/x
  3. Step 3: Cross multiply
    478,261.92x = 660,006.16 × 263,408.60
  4. Step 4: Simplify right side
    478,261.92x = 173,851,298,596.98
  5. Step 5: Solve for x
    x = 173,851,298,596.98/478,261.92
  6. Step 6: Final answer
    x = 363,506.46

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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.