Home / 975,722.80-1,463,584.20-640,879.60

Finding the Fourth Proportional to 975,722.80, 1,463,584.20 and 640,879.60

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Solution

The fourth proportional to 975,722.80, 1,463,584.20 and 640,879.60 is: 961,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,722.80 : 1,463,584.20 = 640,879.60 : x
  2. Step 2: Convert to fraction form
    975,722.80/1,463,584.20 = 640,879.60/x
  3. Step 3: Cross multiply
    975,722.80x = 1,463,584.20 × 640,879.60
  4. Step 4: Simplify right side
    975,722.80x = 937,981,256,662.32
  5. Step 5: Solve for x
    x = 937,981,256,662.32/975,722.80
  6. Step 6: Final answer
    x = 961,319.40

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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.