Home / 1,262,650.80-1,742,499.96-689,744.40

Finding the Fourth Proportional to 1,262,650.80, 1,742,499.96 and 689,744.40

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Solution

The fourth proportional to 1,262,650.80, 1,742,499.96 and 689,744.40 is: 951,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,650.80 : 1,742,499.96 = 689,744.40 : x
  2. Step 2: Convert to fraction form
    1,262,650.80/1,742,499.96 = 689,744.40/x
  3. Step 3: Cross multiply
    1,262,650.80x = 1,742,499.96 × 689,744.40
  4. Step 4: Simplify right side
    1,262,650.80x = 1,201,879,589,410.22
  5. Step 5: Solve for x
    x = 1,201,879,589,410.22/1,262,650.80
  6. Step 6: Final answer
    x = 951,870.14

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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.