Home / 1,325,899.20-1,988,848.80-822,014.40

Finding the Fourth Proportional to 1,325,899.20, 1,988,848.80 and 822,014.40

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Solution

The fourth proportional to 1,325,899.20, 1,988,848.80 and 822,014.40 is: 1,233,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,899.20 : 1,988,848.80 = 822,014.40 : x
  2. Step 2: Convert to fraction form
    1,325,899.20/1,988,848.80 = 822,014.40/x
  3. Step 3: Cross multiply
    1,325,899.20x = 1,988,848.80 × 822,014.40
  4. Step 4: Simplify right side
    1,325,899.20x = 1,634,862,353,022.72
  5. Step 5: Solve for x
    x = 1,634,862,353,022.72/1,325,899.20
  6. Step 6: Final answer
    x = 1,233,021.60

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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.