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Finding the Fourth Proportional to 640,550.37, 883,959.71 and 350,163.21

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Solution

The fourth proportional to 640,550.37, 883,959.71 and 350,163.21 is: 483,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,550.37 : 883,959.71 = 350,163.21 : x
  2. Step 2: Convert to fraction form
    640,550.37/883,959.71 = 350,163.21/x
  3. Step 3: Cross multiply
    640,550.37x = 883,959.71 × 350,163.21
  4. Step 4: Simplify right side
    640,550.37x = 309,530,168,688.86
  5. Step 5: Solve for x
    x = 309,530,168,688.86/640,550.37
  6. Step 6: Final answer
    x = 483,225.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.