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Finding the Fourth Proportional to 608,109.60, 910,918.89 and 341,309.91

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Solution

The fourth proportional to 608,109.60, 910,918.89 and 341,309.91 is: 511,265.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,109.60 : 910,918.89 = 341,309.91 : x
  2. Step 2: Convert to fraction form
    608,109.60/910,918.89 = 341,309.91/x
  3. Step 3: Cross multiply
    608,109.60x = 910,918.89 × 341,309.91
  4. Step 4: Simplify right side
    608,109.60x = 310,905,644,363.20
  5. Step 5: Solve for x
    x = 310,905,644,363.20/608,109.60
  6. Step 6: Final answer
    x = 511,265.81

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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.