Home / 1,312,081.56-1,968,222.13-447,247.91

Finding the Fourth Proportional to 1,312,081.56, 1,968,222.13 and 447,247.91

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Solution

The fourth proportional to 1,312,081.56, 1,968,222.13 and 447,247.91 is: 670,905.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,081.56 : 1,968,222.13 = 447,247.91 : x
  2. Step 2: Convert to fraction form
    1,312,081.56/1,968,222.13 = 447,247.91/x
  3. Step 3: Cross multiply
    1,312,081.56x = 1,968,222.13 × 447,247.91
  4. Step 4: Simplify right side
    1,312,081.56x = 880,283,237,860.68
  5. Step 5: Solve for x
    x = 880,283,237,860.68/1,312,081.56
  6. Step 6: Final answer
    x = 670,905.88

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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.