Home / 3,218,175.12-4,827,258.48-822,021.60

Finding the Fourth Proportional to 3,218,175.12, 4,827,258.48 and 822,021.60

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Solution

The fourth proportional to 3,218,175.12, 4,827,258.48 and 822,021.60 is: 1,233,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218,175.12 : 4,827,258.48 = 822,021.60 : x
  2. Step 2: Convert to fraction form
    3,218,175.12/4,827,258.48 = 822,021.60/x
  3. Step 3: Cross multiply
    3,218,175.12x = 4,827,258.48 × 822,021.60
  4. Step 4: Simplify right side
    3,218,175.12x = 3,968,110,739,343.17
  5. Step 5: Solve for x
    x = 3,968,110,739,343.17/3,218,175.12
  6. Step 6: Final answer
    x = 1,233,031.33

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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.