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Finding the Fourth Proportional to 483,456.40, 724,493.40 and 356,102.80

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Solution

The fourth proportional to 483,456.40, 724,493.40 and 356,102.80 is: 533,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,456.40 : 724,493.40 = 356,102.80 : x
  2. Step 2: Convert to fraction form
    483,456.40/724,493.40 = 356,102.80/x
  3. Step 3: Cross multiply
    483,456.40x = 724,493.40 × 356,102.80
  4. Step 4: Simplify right side
    483,456.40x = 257,994,128,321.52
  5. Step 5: Solve for x
    x = 257,994,128,321.52/483,456.40
  6. Step 6: Final answer
    x = 533,645.08

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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.