Home / 715,736.22-1,072,154.21-330,938.22

Finding the Fourth Proportional to 715,736.22, 1,072,154.21 and 330,938.22

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Solution

The fourth proportional to 715,736.22, 1,072,154.21 and 330,938.22 is: 495,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,736.22 : 1,072,154.21 = 330,938.22 : x
  2. Step 2: Convert to fraction form
    715,736.22/1,072,154.21 = 330,938.22/x
  3. Step 3: Cross multiply
    715,736.22x = 1,072,154.21 × 330,938.22
  4. Step 4: Simplify right side
    715,736.22x = 354,816,808,188.79
  5. Step 5: Solve for x
    x = 354,816,808,188.79/715,736.22
  6. Step 6: Final answer
    x = 495,736.84

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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.