Home / 1,262,736.66-1,742,511.45-689,666.12

Finding the Fourth Proportional to 1,262,736.66, 1,742,511.45 and 689,666.12

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Solution

The fourth proportional to 1,262,736.66, 1,742,511.45 and 689,666.12 is: 951,703.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,736.66 : 1,742,511.45 = 689,666.12 : x
  2. Step 2: Convert to fraction form
    1,262,736.66/1,742,511.45 = 689,666.12/x
  3. Step 3: Cross multiply
    1,262,736.66x = 1,742,511.45 × 689,666.12
  4. Step 4: Simplify right side
    1,262,736.66x = 1,201,751,110,777.07
  5. Step 5: Solve for x
    x = 1,201,751,110,777.07/1,262,736.66
  6. Step 6: Final answer
    x = 951,703.67

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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.