Home / 1,262,339.46-1,742,034.87-689,379.62

Finding the Fourth Proportional to 1,262,339.46, 1,742,034.87 and 689,379.62

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Solution

The fourth proportional to 1,262,339.46, 1,742,034.87 and 689,379.62 is: 951,347.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,339.46 : 1,742,034.87 = 689,379.62 : x
  2. Step 2: Convert to fraction form
    1,262,339.46/1,742,034.87 = 689,379.62/x
  3. Step 3: Cross multiply
    1,262,339.46x = 1,742,034.87 × 689,379.62
  4. Step 4: Simplify right side
    1,262,339.46x = 1,200,923,327,997.18
  5. Step 5: Solve for x
    x = 1,200,923,327,997.18/1,262,339.46
  6. Step 6: Final answer
    x = 951,347.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.