Home / 809,213.60-1,212,848.40-335,655.20

Finding the Fourth Proportional to 809,213.60, 1,212,848.40 and 335,655.20

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Solution

The fourth proportional to 809,213.60, 1,212,848.40 and 335,655.20 is: 503,079.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,213.60 : 1,212,848.40 = 335,655.20 : x
  2. Step 2: Convert to fraction form
    809,213.60/1,212,848.40 = 335,655.20/x
  3. Step 3: Cross multiply
    809,213.60x = 1,212,848.40 × 335,655.20
  4. Step 4: Simplify right side
    809,213.60x = 407,098,872,271.68
  5. Step 5: Solve for x
    x = 407,098,872,271.68/809,213.60
  6. Step 6: Final answer
    x = 503,079.62

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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.