Home / 2,686,704.69-4,031,631.68-1,927,728.21

Finding the Fourth Proportional to 2,686,704.69, 4,031,631.68 and 1,927,728.21

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Solution

The fourth proportional to 2,686,704.69, 4,031,631.68 and 1,927,728.21 is: 2,892,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,704.69 : 4,031,631.68 = 1,927,728.21 : x
  2. Step 2: Convert to fraction form
    2,686,704.69/4,031,631.68 = 1,927,728.21/x
  3. Step 3: Cross multiply
    2,686,704.69x = 4,031,631.68 × 1,927,728.21
  4. Step 4: Simplify right side
    2,686,704.69x = 7,771,890,112,227.05
  5. Step 5: Solve for x
    x = 7,771,890,112,227.05/2,686,704.69
  6. Step 6: Final answer
    x = 2,892,722.13

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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.