Home / 909,632.40-1,362,480.30-809,905.20

Finding the Fourth Proportional to 909,632.40, 1,362,480.30 and 809,905.20

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Solution

The fourth proportional to 909,632.40, 1,362,480.30 and 809,905.20 is: 1,213,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,632.40 : 1,362,480.30 = 809,905.20 : x
  2. Step 2: Convert to fraction form
    909,632.40/1,362,480.30 = 809,905.20/x
  3. Step 3: Cross multiply
    909,632.40x = 1,362,480.30 × 809,905.20
  4. Step 4: Simplify right side
    909,632.40x = 1,103,479,879,867.56
  5. Step 5: Solve for x
    x = 1,103,479,879,867.56/909,632.40
  6. Step 6: Final answer
    x = 1,213,105.29

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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.