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Finding the Fourth Proportional to 1,819,592, 2,729,388 and 637,640

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Solution

The fourth proportional to 1,819,592, 2,729,388 and 637,640 is: 956,460

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,592 : 2,729,388 = 637,640 : x
  2. Step 2: Convert to fraction form
    1,819,592/2,729,388 = 637,640/x
  3. Step 3: Cross multiply
    1,819,592x = 2,729,388 × 637,640
  4. Step 4: Simplify right side
    1,819,592x = 1,740,366,964,320
  5. Step 5: Solve for x
    x = 1,740,366,964,320/1,819,592
  6. Step 6: Final answer
    x = 956,460

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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.