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Finding the Fourth Proportional to 645,388.44, 967,955.04 and 613,382.88

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Solution

The fourth proportional to 645,388.44, 967,955.04 and 613,382.88 is: 919,953.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,388.44 : 967,955.04 = 613,382.88 : x
  2. Step 2: Convert to fraction form
    645,388.44/967,955.04 = 613,382.88/x
  3. Step 3: Cross multiply
    645,388.44x = 967,955.04 × 613,382.88
  4. Step 4: Simplify right side
    645,388.44x = 593,727,050,145.72
  5. Step 5: Solve for x
    x = 593,727,050,145.72/645,388.44
  6. Step 6: Final answer
    x = 919,953.03

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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.