Home / 939,568.96-1,409,568.72-407,179.36

Finding the Fourth Proportional to 939,568.96, 1,409,568.72 and 407,179.36

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Solution

The fourth proportional to 939,568.96, 1,409,568.72 and 407,179.36 is: 610,862.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,568.96 : 1,409,568.72 = 407,179.36 : x
  2. Step 2: Convert to fraction form
    939,568.96/1,409,568.72 = 407,179.36/x
  3. Step 3: Cross multiply
    939,568.96x = 1,409,568.72 × 407,179.36
  4. Step 4: Simplify right side
    939,568.96x = 573,947,289,285.62
  5. Step 5: Solve for x
    x = 573,947,289,285.62/939,568.96
  6. Step 6: Final answer
    x = 610,862.34

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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.