Home / 1,939,158.62-2,908,936.58-742,087.76

Finding the Fourth Proportional to 1,939,158.62, 2,908,936.58 and 742,087.76

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Solution

The fourth proportional to 1,939,158.62, 2,908,936.58 and 742,087.76 is: 1,113,207.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,158.62 : 2,908,936.58 = 742,087.76 : x
  2. Step 2: Convert to fraction form
    1,939,158.62/2,908,936.58 = 742,087.76/x
  3. Step 3: Cross multiply
    1,939,158.62x = 2,908,936.58 × 742,087.76
  4. Step 4: Simplify right side
    1,939,158.62x = 2,158,686,212,379.14
  5. Step 5: Solve for x
    x = 2,158,686,212,379.14/1,939,158.62
  6. Step 6: Final answer
    x = 1,113,207.65

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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.