Home / 1,028,871.42-1,542,743.37-318,702.30

Finding the Fourth Proportional to 1,028,871.42, 1,542,743.37 and 318,702.30

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Solution

The fourth proportional to 1,028,871.42, 1,542,743.37 and 318,702.30 is: 477,878.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,871.42 : 1,542,743.37 = 318,702.30 : x
  2. Step 2: Convert to fraction form
    1,028,871.42/1,542,743.37 = 318,702.30/x
  3. Step 3: Cross multiply
    1,028,871.42x = 1,542,743.37 × 318,702.30
  4. Step 4: Simplify right side
    1,028,871.42x = 491,675,860,328.75
  5. Step 5: Solve for x
    x = 491,675,860,328.75/1,028,871.42
  6. Step 6: Final answer
    x = 477,878.82

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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.