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Finding the Fourth Proportional to 478,104.48, 659,059.20 and 393,073.92

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Solution

The fourth proportional to 478,104.48, 659,059.20 and 393,073.92 is: 541,845.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,104.48 : 659,059.20 = 393,073.92 : x
  2. Step 2: Convert to fraction form
    478,104.48/659,059.20 = 393,073.92/x
  3. Step 3: Cross multiply
    478,104.48x = 659,059.20 × 393,073.92
  4. Step 4: Simplify right side
    478,104.48x = 259,058,983,256.06
  5. Step 5: Solve for x
    x = 259,058,983,256.06/478,104.48
  6. Step 6: Final answer
    x = 541,845.96

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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.