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Finding the Fourth Proportional to 681,088.01, 939,907.94 and 375,165.72

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Solution

The fourth proportional to 681,088.01, 939,907.94 and 375,165.72 is: 517,732.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,088.01 : 939,907.94 = 375,165.72 : x
  2. Step 2: Convert to fraction form
    681,088.01/939,907.94 = 375,165.72/x
  3. Step 3: Cross multiply
    681,088.01x = 939,907.94 × 375,165.72
  4. Step 4: Simplify right side
    681,088.01x = 352,621,237,167.99
  5. Step 5: Solve for x
    x = 352,621,237,167.99/681,088.01
  6. Step 6: Final answer
    x = 517,732.27

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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.