Home / 860,935.72-1,291,399.26-221,238.76

Finding the Fourth Proportional to 860,935.72, 1,291,399.26 and 221,238.76

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Solution

The fourth proportional to 860,935.72, 1,291,399.26 and 221,238.76 is: 331,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,935.72 : 1,291,399.26 = 221,238.76 : x
  2. Step 2: Convert to fraction form
    860,935.72/1,291,399.26 = 221,238.76/x
  3. Step 3: Cross multiply
    860,935.72x = 1,291,399.26 × 221,238.76
  4. Step 4: Simplify right side
    860,935.72x = 285,707,570,947.32
  5. Step 5: Solve for x
    x = 285,707,570,947.32/860,935.72
  6. Step 6: Final answer
    x = 331,857.03

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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.