Home / 1,290,021.30-1,935,265.51-531,441.22

Finding the Fourth Proportional to 1,290,021.30, 1,935,265.51 and 531,441.22

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Solution

The fourth proportional to 1,290,021.30, 1,935,265.51 and 531,441.22 is: 797,258.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,021.30 : 1,935,265.51 = 531,441.22 : x
  2. Step 2: Convert to fraction form
    1,290,021.30/1,935,265.51 = 531,441.22/x
  3. Step 3: Cross multiply
    1,290,021.30x = 1,935,265.51 × 531,441.22
  4. Step 4: Simplify right side
    1,290,021.30x = 1,028,479,863,658.32
  5. Step 5: Solve for x
    x = 1,028,479,863,658.32/1,290,021.30
  6. Step 6: Final answer
    x = 797,258.05

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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.