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Finding the Fourth Proportional to 738,208, 1,018,435.44 and 466,174.36

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Solution

The fourth proportional to 738,208, 1,018,435.44 and 466,174.36 is: 643,136.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,208 : 1,018,435.44 = 466,174.36 : x
  2. Step 2: Convert to fraction form
    738,208/1,018,435.44 = 466,174.36/x
  3. Step 3: Cross multiply
    738,208x = 1,018,435.44 × 466,174.36
  4. Step 4: Simplify right side
    738,208x = 474,768,489,443.32
  5. Step 5: Solve for x
    x = 474,768,489,443.32/738,208
  6. Step 6: Final answer
    x = 643,136.47

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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.