Home / 919,828.41-1,379,964.76-288,742.22

Finding the Fourth Proportional to 919,828.41, 1,379,964.76 and 288,742.22

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Solution

The fourth proportional to 919,828.41, 1,379,964.76 and 288,742.22 is: 433,183.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,828.41 : 1,379,964.76 = 288,742.22 : x
  2. Step 2: Convert to fraction form
    919,828.41/1,379,964.76 = 288,742.22/x
  3. Step 3: Cross multiply
    919,828.41x = 1,379,964.76 × 288,742.22
  4. Step 4: Simplify right side
    919,828.41x = 398,454,091,052.22
  5. Step 5: Solve for x
    x = 398,454,091,052.22/919,828.41
  6. Step 6: Final answer
    x = 433,183.07

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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.