Home / 810,949.72-1,217,527.74-456,213.40

Finding the Fourth Proportional to 810,949.72, 1,217,527.74 and 456,213.40

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Solution

The fourth proportional to 810,949.72, 1,217,527.74 and 456,213.40 is: 684,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,949.72 : 1,217,527.74 = 456,213.40 : x
  2. Step 2: Convert to fraction form
    810,949.72/1,217,527.74 = 456,213.40/x
  3. Step 3: Cross multiply
    810,949.72x = 1,217,527.74 × 456,213.40
  4. Step 4: Simplify right side
    810,949.72x = 555,452,469,859.72
  5. Step 5: Solve for x
    x = 555,452,469,859.72/810,949.72
  6. Step 6: Final answer
    x = 684,940.70

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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.