Home / 691,358.40-1,036,622.88-270,132.48

Finding the Fourth Proportional to 691,358.40, 1,036,622.88 and 270,132.48

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Solution

The fourth proportional to 691,358.40, 1,036,622.88 and 270,132.48 is: 405,036.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,358.40 : 1,036,622.88 = 270,132.48 : x
  2. Step 2: Convert to fraction form
    691,358.40/1,036,622.88 = 270,132.48/x
  3. Step 3: Cross multiply
    691,358.40x = 1,036,622.88 × 270,132.48
  4. Step 4: Simplify right side
    691,358.40x = 280,025,509,399.14
  5. Step 5: Solve for x
    x = 280,025,509,399.14/691,358.40
  6. Step 6: Final answer
    x = 405,036.68

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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.