Home / 859,563.76-1,289,388.47-327,126.06

Finding the Fourth Proportional to 859,563.76, 1,289,388.47 and 327,126.06

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Solution

The fourth proportional to 859,563.76, 1,289,388.47 and 327,126.06 is: 490,705.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,563.76 : 1,289,388.47 = 327,126.06 : x
  2. Step 2: Convert to fraction form
    859,563.76/1,289,388.47 = 327,126.06/x
  3. Step 3: Cross multiply
    859,563.76x = 1,289,388.47 × 327,126.06
  4. Step 4: Simplify right side
    859,563.76x = 421,792,564,535.34
  5. Step 5: Solve for x
    x = 421,792,564,535.34/859,563.76
  6. Step 6: Final answer
    x = 490,705.38

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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.