Home / 1,262,509.03-1,742,262.48-689,550.57

Finding the Fourth Proportional to 1,262,509.03, 1,742,262.48 and 689,550.57

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Solution

The fourth proportional to 1,262,509.03, 1,742,262.48 and 689,550.57 is: 951,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,509.03 : 1,742,262.48 = 689,550.57 : x
  2. Step 2: Convert to fraction form
    1,262,509.03/1,742,262.48 = 689,550.57/x
  3. Step 3: Cross multiply
    1,262,509.03x = 1,742,262.48 × 689,550.57
  4. Step 4: Simplify right side
    1,262,509.03x = 1,201,378,086,173.61
  5. Step 5: Solve for x
    x = 1,201,378,086,173.61/1,262,509.03
  6. Step 6: Final answer
    x = 951,579.80

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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.