Home / 809,000.07-1,213,184.88-303,285.21

Finding the Fourth Proportional to 809,000.07, 1,213,184.88 and 303,285.21

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Solution

The fourth proportional to 809,000.07, 1,213,184.88 and 303,285.21 is: 454,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,000.07 : 1,213,184.88 = 303,285.21 : x
  2. Step 2: Convert to fraction form
    809,000.07/1,213,184.88 = 303,285.21/x
  3. Step 3: Cross multiply
    809,000.07x = 1,213,184.88 × 303,285.21
  4. Step 4: Simplify right side
    809,000.07x = 367,941,031,099.63
  5. Step 5: Solve for x
    x = 367,941,031,099.63/809,000.07
  6. Step 6: Final answer
    x = 454,809.64

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Double scale
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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.