Home / 1,262,826.40-1,742,678.46-689,851.84

Finding the Fourth Proportional to 1,262,826.40, 1,742,678.46 and 689,851.84

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Solution

The fourth proportional to 1,262,826.40, 1,742,678.46 and 689,851.84 is: 951,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,826.40 : 1,742,678.46 = 689,851.84 : x
  2. Step 2: Convert to fraction form
    1,262,826.40/1,742,678.46 = 689,851.84/x
  3. Step 3: Cross multiply
    1,262,826.40x = 1,742,678.46 × 689,851.84
  4. Step 4: Simplify right side
    1,262,826.40x = 1,202,189,942,159.37
  5. Step 5: Solve for x
    x = 1,202,189,942,159.37/1,262,826.40
  6. Step 6: Final answer
    x = 951,983.54

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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.