Home / 1,262,822.40-1,742,672.94-689,847.84

Finding the Fourth Proportional to 1,262,822.40, 1,742,672.94 and 689,847.84

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Solution

The fourth proportional to 1,262,822.40, 1,742,672.94 and 689,847.84 is: 951,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,822.40 : 1,742,672.94 = 689,847.84 : x
  2. Step 2: Convert to fraction form
    1,262,822.40/1,742,672.94 = 689,847.84/x
  3. Step 3: Cross multiply
    1,262,822.40x = 1,742,672.94 × 689,847.84
  4. Step 4: Simplify right side
    1,262,822.40x = 1,202,179,163,485.45
  5. Step 5: Solve for x
    x = 1,202,179,163,485.45/1,262,822.40
  6. Step 6: Final answer
    x = 951,978.02

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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.