Home / 814,185.14-1,221,280.83-340,538.22

Finding the Fourth Proportional to 814,185.14, 1,221,280.83 and 340,538.22

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Solution

The fourth proportional to 814,185.14, 1,221,280.83 and 340,538.22 is: 510,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,185.14 : 1,221,280.83 = 340,538.22 : x
  2. Step 2: Convert to fraction form
    814,185.14/1,221,280.83 = 340,538.22/x
  3. Step 3: Cross multiply
    814,185.14x = 1,221,280.83 × 340,538.22
  4. Step 4: Simplify right side
    814,185.14x = 415,892,799,968.32
  5. Step 5: Solve for x
    x = 415,892,799,968.32/814,185.14
  6. Step 6: Final answer
    x = 510,808.64

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1.5x scale

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.