Home / 393,030.20-589,660.14-126,784.84

Finding the Fourth Proportional to 393,030.20, 589,660.14 and 126,784.84

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Solution

The fourth proportional to 393,030.20, 589,660.14 and 126,784.84 is: 190,214.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,030.20 : 589,660.14 = 126,784.84 : x
  2. Step 2: Convert to fraction form
    393,030.20/589,660.14 = 126,784.84/x
  3. Step 3: Cross multiply
    393,030.20x = 589,660.14 × 126,784.84
  4. Step 4: Simplify right side
    393,030.20x = 74,759,966,504.28
  5. Step 5: Solve for x
    x = 74,759,966,504.28/393,030.20
  6. Step 6: Final answer
    x = 190,214.31

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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.