Home / 959,159.20-1,439,905.20-485,600.80

Finding the Fourth Proportional to 959,159.20, 1,439,905.20 and 485,600.80

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Solution

The fourth proportional to 959,159.20, 1,439,905.20 and 485,600.80 is: 728,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,159.20 : 1,439,905.20 = 485,600.80 : x
  2. Step 2: Convert to fraction form
    959,159.20/1,439,905.20 = 485,600.80/x
  3. Step 3: Cross multiply
    959,159.20x = 1,439,905.20 × 485,600.80
  4. Step 4: Simplify right side
    959,159.20x = 699,219,117,044.16
  5. Step 5: Solve for x
    x = 699,219,117,044.16/959,159.20
  6. Step 6: Final answer
    x = 728,991.72

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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.