Home / 476,678.36-657,821.52-261,823.44

Finding the Fourth Proportional to 476,678.36, 657,821.52 and 261,823.44

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Solution

The fourth proportional to 476,678.36, 657,821.52 and 261,823.44 is: 361,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,678.36 : 657,821.52 = 261,823.44 : x
  2. Step 2: Convert to fraction form
    476,678.36/657,821.52 = 261,823.44/x
  3. Step 3: Cross multiply
    476,678.36x = 657,821.52 × 261,823.44
  4. Step 4: Simplify right side
    476,678.36x = 172,233,093,272.43
  5. Step 5: Solve for x
    x = 172,233,093,272.43/476,678.36
  6. Step 6: Final answer
    x = 361,319.30

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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.