Home / 1,262,338.30-1,742,040.72-689,395.33

Finding the Fourth Proportional to 1,262,338.30, 1,742,040.72 and 689,395.33

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Solution

The fourth proportional to 1,262,338.30, 1,742,040.72 and 689,395.33 is: 951,373.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,338.30 : 1,742,040.72 = 689,395.33 : x
  2. Step 2: Convert to fraction form
    1,262,338.30/1,742,040.72 = 689,395.33/x
  3. Step 3: Cross multiply
    1,262,338.30x = 1,742,040.72 × 689,395.33
  4. Step 4: Simplify right side
    1,262,338.30x = 1,200,954,737,037.84
  5. Step 5: Solve for x
    x = 1,200,954,737,037.84/1,262,338.30
  6. Step 6: Final answer
    x = 951,373.13

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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.