Home / 1,352,421.72-2,028,830.40-405,867.24

Finding the Fourth Proportional to 1,352,421.72, 2,028,830.40 and 405,867.24

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Solution

The fourth proportional to 1,352,421.72, 2,028,830.40 and 405,867.24 is: 608,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,421.72 : 2,028,830.40 = 405,867.24 : x
  2. Step 2: Convert to fraction form
    1,352,421.72/2,028,830.40 = 405,867.24/x
  3. Step 3: Cross multiply
    1,352,421.72x = 2,028,830.40 × 405,867.24
  4. Step 4: Simplify right side
    1,352,421.72x = 823,435,794,876.10
  5. Step 5: Solve for x
    x = 823,435,794,876.10/1,352,421.72
  6. Step 6: Final answer
    x = 608,860.23

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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.