Home / 982,136.64-1,355,362.56-579,728.64

Finding the Fourth Proportional to 982,136.64, 1,355,362.56 and 579,728.64

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Solution

The fourth proportional to 982,136.64, 1,355,362.56 and 579,728.64 is: 800,033.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,136.64 : 1,355,362.56 = 579,728.64 : x
  2. Step 2: Convert to fraction form
    982,136.64/1,355,362.56 = 579,728.64/x
  3. Step 3: Cross multiply
    982,136.64x = 1,355,362.56 × 579,728.64
  4. Step 4: Simplify right side
    982,136.64x = 785,742,493,615.72
  5. Step 5: Solve for x
    x = 785,742,493,615.72/982,136.64
  6. Step 6: Final answer
    x = 800,033.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.