Home / 1,262,323.80-1,742,020.70-689,380.83

Finding the Fourth Proportional to 1,262,323.80, 1,742,020.70 and 689,380.83

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Solution

The fourth proportional to 1,262,323.80, 1,742,020.70 and 689,380.83 is: 951,353.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,323.80 : 1,742,020.70 = 689,380.83 : x
  2. Step 2: Convert to fraction form
    1,262,323.80/1,742,020.70 = 689,380.83/x
  3. Step 3: Cross multiply
    1,262,323.80x = 1,742,020.70 × 689,380.83
  4. Step 4: Simplify right side
    1,262,323.80x = 1,200,915,672,596.28
  5. Step 5: Solve for x
    x = 1,200,915,672,596.28/1,262,323.80
  6. Step 6: Final answer
    x = 951,353.11

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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.