Home / 879,987.36-1,214,382.24-477,579.36

Finding the Fourth Proportional to 879,987.36, 1,214,382.24 and 477,579.36

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Solution

The fourth proportional to 879,987.36, 1,214,382.24 and 477,579.36 is: 659,059.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,987.36 : 1,214,382.24 = 477,579.36 : x
  2. Step 2: Convert to fraction form
    879,987.36/1,214,382.24 = 477,579.36/x
  3. Step 3: Cross multiply
    879,987.36x = 1,214,382.24 × 477,579.36
  4. Step 4: Simplify right side
    879,987.36x = 579,963,892,974.57
  5. Step 5: Solve for x
    x = 579,963,892,974.57/879,987.36
  6. Step 6: Final answer
    x = 659,059.34

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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.