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Finding the Fourth Proportional to 648,919.72, 895,499.78 and 362,443.88

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Solution

The fourth proportional to 648,919.72, 895,499.78 and 362,443.88 is: 500,167.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,919.72 : 895,499.78 = 362,443.88 : x
  2. Step 2: Convert to fraction form
    648,919.72/895,499.78 = 362,443.88/x
  3. Step 3: Cross multiply
    648,919.72x = 895,499.78 × 362,443.88
  4. Step 4: Simplify right side
    648,919.72x = 324,568,414,802.35
  5. Step 5: Solve for x
    x = 324,568,414,802.35/648,919.72
  6. Step 6: Final answer
    x = 500,167.29

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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.