Home / 1,207,904.40-1,811,850.20-309,344.40

Finding the Fourth Proportional to 1,207,904.40, 1,811,850.20 and 309,344.40

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Solution

The fourth proportional to 1,207,904.40, 1,811,850.20 and 309,344.40 is: 464,014.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,904.40 : 1,811,850.20 = 309,344.40 : x
  2. Step 2: Convert to fraction form
    1,207,904.40/1,811,850.20 = 309,344.40/x
  3. Step 3: Cross multiply
    1,207,904.40x = 1,811,850.20 × 309,344.40
  4. Step 4: Simplify right side
    1,207,904.40x = 560,485,713,008.88
  5. Step 5: Solve for x
    x = 560,485,713,008.88/1,207,904.40
  6. Step 6: Final answer
    x = 464,014.96

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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.