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Finding the Fourth Proportional to 644,945, 967,533.88 and 265,658.72

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Solution

The fourth proportional to 644,945, 967,533.88 and 265,658.72 is: 398,536.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,945 : 967,533.88 = 265,658.72 : x
  2. Step 2: Convert to fraction form
    644,945/967,533.88 = 265,658.72/x
  3. Step 3: Cross multiply
    644,945x = 967,533.88 × 265,658.72
  4. Step 4: Simplify right side
    644,945x = 257,033,812,117.43
  5. Step 5: Solve for x
    x = 257,033,812,117.43/644,945
  6. Step 6: Final answer
    x = 398,536.02

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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.