Home / 1,152,405.70-1,728,608.55-487,471.30

Finding the Fourth Proportional to 1,152,405.70, 1,728,608.55 and 487,471.30

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Solution

The fourth proportional to 1,152,405.70, 1,728,608.55 and 487,471.30 is: 731,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,405.70 : 1,728,608.55 = 487,471.30 : x
  2. Step 2: Convert to fraction form
    1,152,405.70/1,728,608.55 = 487,471.30/x
  3. Step 3: Cross multiply
    1,152,405.70x = 1,728,608.55 × 487,471.30
  4. Step 4: Simplify right side
    1,152,405.70x = 842,647,057,059.62
  5. Step 5: Solve for x
    x = 842,647,057,059.62/1,152,405.70
  6. Step 6: Final answer
    x = 731,206.95

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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.