Home / 972,429.87-1,342,320.99-731,408.46

Finding the Fourth Proportional to 972,429.87, 1,342,320.99 and 731,408.46

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Solution

The fourth proportional to 972,429.87, 1,342,320.99 and 731,408.46 is: 1,009,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,429.87 : 1,342,320.99 = 731,408.46 : x
  2. Step 2: Convert to fraction form
    972,429.87/1,342,320.99 = 731,408.46/x
  3. Step 3: Cross multiply
    972,429.87x = 1,342,320.99 × 731,408.46
  4. Step 4: Simplify right side
    972,429.87x = 981,784,928,121.58
  5. Step 5: Solve for x
    x = 981,784,928,121.58/972,429.87
  6. Step 6: Final answer
    x = 1,009,620.29

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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.