Home / 1,262,816.40-1,742,664.66-689,841.84

Finding the Fourth Proportional to 1,262,816.40, 1,742,664.66 and 689,841.84

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Solution

The fourth proportional to 1,262,816.40, 1,742,664.66 and 689,841.84 is: 951,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,816.40 : 1,742,664.66 = 689,841.84 : x
  2. Step 2: Convert to fraction form
    1,262,816.40/1,742,664.66 = 689,841.84/x
  3. Step 3: Cross multiply
    1,262,816.40x = 1,742,664.66 × 689,841.84
  4. Step 4: Simplify right side
    1,262,816.40x = 1,202,162,995,557.37
  5. Step 5: Solve for x
    x = 1,202,162,995,557.37/1,262,816.40
  6. Step 6: Final answer
    x = 951,969.74

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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.