Home / 905,338.65-1,358,218.18-265,616.54

Finding the Fourth Proportional to 905,338.65, 1,358,218.18 and 265,616.54

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Solution

The fourth proportional to 905,338.65, 1,358,218.18 and 265,616.54 is: 398,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,338.65 : 1,358,218.18 = 265,616.54 : x
  2. Step 2: Convert to fraction form
    905,338.65/1,358,218.18 = 265,616.54/x
  3. Step 3: Cross multiply
    905,338.65x = 1,358,218.18 × 265,616.54
  4. Step 4: Simplify right side
    905,338.65x = 360,765,214,496.84
  5. Step 5: Solve for x
    x = 360,765,214,496.84/905,338.65
  6. Step 6: Final answer
    x = 398,486.48

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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.