Home / 860,381.96-1,289,410.37-327,612.36

Finding the Fourth Proportional to 860,381.96, 1,289,410.37 and 327,612.36

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Solution

The fourth proportional to 860,381.96, 1,289,410.37 and 327,612.36 is: 490,975.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,381.96 : 1,289,410.37 = 327,612.36 : x
  2. Step 2: Convert to fraction form
    860,381.96/1,289,410.37 = 327,612.36/x
  3. Step 3: Cross multiply
    860,381.96x = 1,289,410.37 × 327,612.36
  4. Step 4: Simplify right side
    860,381.96x = 422,426,774,324.17
  5. Step 5: Solve for x
    x = 422,426,774,324.17/860,381.96
  6. Step 6: Final answer
    x = 490,975.86

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1.5x scale

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.