Home / 805,278.85-1,207,032.54-331,705.87

Finding the Fourth Proportional to 805,278.85, 1,207,032.54 and 331,705.87

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Solution

The fourth proportional to 805,278.85, 1,207,032.54 and 331,705.87 is: 497,193.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,278.85 : 1,207,032.54 = 331,705.87 : x
  2. Step 2: Convert to fraction form
    805,278.85/1,207,032.54 = 331,705.87/x
  3. Step 3: Cross multiply
    805,278.85x = 1,207,032.54 × 331,705.87
  4. Step 4: Simplify right side
    805,278.85x = 400,379,778,799.01
  5. Step 5: Solve for x
    x = 400,379,778,799.01/805,278.85
  6. Step 6: Final answer
    x = 497,193.96

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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.