Home / 1,147,128.04-1,721,517.18-427,568.68

Finding the Fourth Proportional to 1,147,128.04, 1,721,517.18 and 427,568.68

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Solution

The fourth proportional to 1,147,128.04, 1,721,517.18 and 427,568.68 is: 641,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,128.04 : 1,721,517.18 = 427,568.68 : x
  2. Step 2: Convert to fraction form
    1,147,128.04/1,721,517.18 = 427,568.68/x
  3. Step 3: Cross multiply
    1,147,128.04x = 1,721,517.18 × 427,568.68
  4. Step 4: Simplify right side
    1,147,128.04x = 736,066,828,249.92
  5. Step 5: Solve for x
    x = 736,066,828,249.92/1,147,128.04
  6. Step 6: Final answer
    x = 641,660.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.