Home / 680,982.40-1,022,056.80-302,485.60

Finding the Fourth Proportional to 680,982.40, 1,022,056.80 and 302,485.60

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Solution

The fourth proportional to 680,982.40, 1,022,056.80 and 302,485.60 is: 453,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,982.40 : 1,022,056.80 = 302,485.60 : x
  2. Step 2: Convert to fraction form
    680,982.40/1,022,056.80 = 302,485.60/x
  3. Step 3: Cross multiply
    680,982.40x = 1,022,056.80 × 302,485.60
  4. Step 4: Simplify right side
    680,982.40x = 309,157,464,382.08
  5. Step 5: Solve for x
    x = 309,157,464,382.08/680,982.40
  6. Step 6: Final answer
    x = 453,987.45

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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.