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Finding the Fourth Proportional to 478,474.80, 717,539.40 and 241,738.80

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Solution

The fourth proportional to 478,474.80, 717,539.40 and 241,738.80 is: 362,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,474.80 : 717,539.40 = 241,738.80 : x
  2. Step 2: Convert to fraction form
    478,474.80/717,539.40 = 241,738.80/x
  3. Step 3: Cross multiply
    478,474.80x = 717,539.40 × 241,738.80
  4. Step 4: Simplify right side
    478,474.80x = 173,457,113,508.72
  5. Step 5: Solve for x
    x = 173,457,113,508.72/478,474.80
  6. Step 6: Final answer
    x = 362,520.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.