Home / 809,239.20-1,213,421.40-335,972.40

Finding the Fourth Proportional to 809,239.20, 1,213,421.40 and 335,972.40

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Solution

The fourth proportional to 809,239.20, 1,213,421.40 and 335,972.40 is: 503,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,239.20 : 1,213,421.40 = 335,972.40 : x
  2. Step 2: Convert to fraction form
    809,239.20/1,213,421.40 = 335,972.40/x
  3. Step 3: Cross multiply
    809,239.20x = 1,213,421.40 × 335,972.40
  4. Step 4: Simplify right side
    809,239.20x = 407,676,099,969.36
  5. Step 5: Solve for x
    x = 407,676,099,969.36/809,239.20
  6. Step 6: Final answer
    x = 503,777.00

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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.