Home / 909,309.69-1,364,019.21-278,228.97

Finding the Fourth Proportional to 909,309.69, 1,364,019.21 and 278,228.97

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Solution

The fourth proportional to 909,309.69, 1,364,019.21 and 278,228.97 is: 417,360.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,309.69 : 1,364,019.21 = 278,228.97 : x
  2. Step 2: Convert to fraction form
    909,309.69/1,364,019.21 = 278,228.97/x
  3. Step 3: Cross multiply
    909,309.69x = 1,364,019.21 × 278,228.97
  4. Step 4: Simplify right side
    909,309.69x = 379,509,658,467.37
  5. Step 5: Solve for x
    x = 379,509,658,467.37/909,309.69
  6. Step 6: Final answer
    x = 417,360.18

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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.