Home / 1,262,489.66-1,742,208.78-689,532.14

Finding the Fourth Proportional to 1,262,489.66, 1,742,208.78 and 689,532.14

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Solution

The fourth proportional to 1,262,489.66, 1,742,208.78 and 689,532.14 is: 951,539.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,489.66 : 1,742,208.78 = 689,532.14 : x
  2. Step 2: Convert to fraction form
    1,262,489.66/1,742,208.78 = 689,532.14/x
  3. Step 3: Cross multiply
    1,262,489.66x = 1,742,208.78 × 689,532.14
  4. Step 4: Simplify right side
    1,262,489.66x = 1,201,308,948,400.19
  5. Step 5: Solve for x
    x = 1,201,308,948,400.19/1,262,489.66
  6. Step 6: Final answer
    x = 951,539.63

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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.