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Finding the Fourth Proportional to 641,293.20, 884,970.92 and 350,903.64

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Solution

The fourth proportional to 641,293.20, 884,970.92 and 350,903.64 is: 484,239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,293.20 : 884,970.92 = 350,903.64 : x
  2. Step 2: Convert to fraction form
    641,293.20/884,970.92 = 350,903.64/x
  3. Step 3: Cross multiply
    641,293.20x = 884,970.92 × 350,903.64
  4. Step 4: Simplify right side
    641,293.20x = 310,539,515,367.63
  5. Step 5: Solve for x
    x = 310,539,515,367.63/641,293.20
  6. Step 6: Final answer
    x = 484,239.53

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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.