Home / 859,861.86-1,289,795.79-260,828.18

Finding the Fourth Proportional to 859,861.86, 1,289,795.79 and 260,828.18

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Solution

The fourth proportional to 859,861.86, 1,289,795.79 and 260,828.18 is: 391,243.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,861.86 : 1,289,795.79 = 260,828.18 : x
  2. Step 2: Convert to fraction form
    859,861.86/1,289,795.79 = 260,828.18/x
  3. Step 3: Cross multiply
    859,861.86x = 1,289,795.79 × 260,828.18
  4. Step 4: Simplify right side
    859,861.86x = 336,415,088,477.36
  5. Step 5: Solve for x
    x = 336,415,088,477.36/859,861.86
  6. Step 6: Final answer
    x = 391,243.18

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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.