Home / 886,867.45-1,223,876.75-478,969.38

Finding the Fourth Proportional to 886,867.45, 1,223,876.75 and 478,969.38

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Solution

The fourth proportional to 886,867.45, 1,223,876.75 and 478,969.38 is: 660,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,867.45 : 1,223,876.75 = 478,969.38 : x
  2. Step 2: Convert to fraction form
    886,867.45/1,223,876.75 = 478,969.38/x
  3. Step 3: Cross multiply
    886,867.45x = 1,223,876.75 × 478,969.38
  4. Step 4: Simplify right side
    886,867.45x = 586,199,485,749.07
  5. Step 5: Solve for x
    x = 586,199,485,749.07/886,867.45
  6. Step 6: Final answer
    x = 660,977.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.