Home / 393,731.20-589,940.70-370,111.60

Finding the Fourth Proportional to 393,731.20, 589,940.70 and 370,111.60

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Solution

The fourth proportional to 393,731.20, 589,940.70 and 370,111.60 is: 554,550.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,731.20 : 589,940.70 = 370,111.60 : x
  2. Step 2: Convert to fraction form
    393,731.20/589,940.70 = 370,111.60/x
  3. Step 3: Cross multiply
    393,731.20x = 589,940.70 × 370,111.60
  4. Step 4: Simplify right side
    393,731.20x = 218,343,896,382.12
  5. Step 5: Solve for x
    x = 218,343,896,382.12/393,731.20
  6. Step 6: Final answer
    x = 554,550.66

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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.