Home / 959,162.20-1,439,909.70-485,603.80

Finding the Fourth Proportional to 959,162.20, 1,439,909.70 and 485,603.80

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Solution

The fourth proportional to 959,162.20, 1,439,909.70 and 485,603.80 is: 728,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,162.20 : 1,439,909.70 = 485,603.80 : x
  2. Step 2: Convert to fraction form
    959,162.20/1,439,909.70 = 485,603.80/x
  3. Step 3: Cross multiply
    959,162.20x = 1,439,909.70 × 485,603.80
  4. Step 4: Simplify right side
    959,162.20x = 699,225,621,976.86
  5. Step 5: Solve for x
    x = 699,225,621,976.86/959,162.20
  6. Step 6: Final answer
    x = 728,996.22

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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.