Home / 647,981.37-972,405.90-268,902.47

Finding the Fourth Proportional to 647,981.37, 972,405.90 and 268,902.47

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Solution

The fourth proportional to 647,981.37, 972,405.90 and 268,902.47 is: 403,533.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,981.37 : 972,405.90 = 268,902.47 : x
  2. Step 2: Convert to fraction form
    647,981.37/972,405.90 = 268,902.47/x
  3. Step 3: Cross multiply
    647,981.37x = 972,405.90 × 268,902.47
  4. Step 4: Simplify right side
    647,981.37x = 261,482,350,783.59
  5. Step 5: Solve for x
    x = 261,482,350,783.59/647,981.37
  6. Step 6: Final answer
    x = 403,533.75

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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.