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Finding the Fourth Proportional to 1,266,967, 1,900,635.79 and 368,291.96

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Solution

The fourth proportional to 1,266,967, 1,900,635.79 and 368,291.96 is: 552,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,967 : 1,900,635.79 = 368,291.96 : x
  2. Step 2: Convert to fraction form
    1,266,967/1,900,635.79 = 368,291.96/x
  3. Step 3: Cross multiply
    1,266,967x = 1,900,635.79 × 368,291.96
  4. Step 4: Simplify right side
    1,266,967x = 699,988,880,345.25
  5. Step 5: Solve for x
    x = 699,988,880,345.25/1,266,967
  6. Step 6: Final answer
    x = 552,491.80

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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.