Home / 645,846.40-968,332.20-330,043.60

Finding the Fourth Proportional to 645,846.40, 968,332.20 and 330,043.60

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Solution

The fourth proportional to 645,846.40, 968,332.20 and 330,043.60 is: 494,841.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,846.40 : 968,332.20 = 330,043.60 : x
  2. Step 2: Convert to fraction form
    645,846.40/968,332.20 = 330,043.60/x
  3. Step 3: Cross multiply
    645,846.40x = 968,332.20 × 330,043.60
  4. Step 4: Simplify right side
    645,846.40x = 319,591,845,283.92
  5. Step 5: Solve for x
    x = 319,591,845,283.92/645,846.40
  6. Step 6: Final answer
    x = 494,841.88

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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.