Home / 879,705.36-1,213,989.12-477,297.36

Finding the Fourth Proportional to 879,705.36, 1,213,989.12 and 477,297.36

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Solution

The fourth proportional to 879,705.36, 1,213,989.12 and 477,297.36 is: 658,668.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,705.36 : 1,213,989.12 = 477,297.36 : x
  2. Step 2: Convert to fraction form
    879,705.36/1,213,989.12 = 477,297.36/x
  3. Step 3: Cross multiply
    879,705.36x = 1,213,989.12 × 477,297.36
  4. Step 4: Simplify right side
    879,705.36x = 579,433,802,044.72
  5. Step 5: Solve for x
    x = 579,433,802,044.72/879,705.36
  6. Step 6: Final answer
    x = 658,668.04

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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.