Home / 1,285,221.60-1,927,832.40-486,529.20

Finding the Fourth Proportional to 1,285,221.60, 1,927,832.40 and 486,529.20

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Solution

The fourth proportional to 1,285,221.60, 1,927,832.40 and 486,529.20 is: 729,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,221.60 : 1,927,832.40 = 486,529.20 : x
  2. Step 2: Convert to fraction form
    1,285,221.60/1,927,832.40 = 486,529.20/x
  3. Step 3: Cross multiply
    1,285,221.60x = 1,927,832.40 × 486,529.20
  4. Step 4: Simplify right side
    1,285,221.60x = 937,946,755,306.08
  5. Step 5: Solve for x
    x = 937,946,755,306.08/1,285,221.60
  6. Step 6: Final answer
    x = 729,793.80

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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.