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Finding the Fourth Proportional to 644,166.62, 888,975.52 and 372,225.50

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Solution

The fourth proportional to 644,166.62, 888,975.52 and 372,225.50 is: 513,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,166.62 : 888,975.52 = 372,225.50 : x
  2. Step 2: Convert to fraction form
    644,166.62/888,975.52 = 372,225.50/x
  3. Step 3: Cross multiply
    644,166.62x = 888,975.52 × 372,225.50
  4. Step 4: Simplify right side
    644,166.62x = 330,899,357,419.76
  5. Step 5: Solve for x
    x = 330,899,357,419.76/644,166.62
  6. Step 6: Final answer
    x = 513,685.97

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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.