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Finding the Fourth Proportional to 436,710.32, 654,675.89 and 170,408.90

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Solution

The fourth proportional to 436,710.32, 654,675.89 and 170,408.90 is: 255,461.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,710.32 : 654,675.89 = 170,408.90 : x
  2. Step 2: Convert to fraction form
    436,710.32/654,675.89 = 170,408.90/x
  3. Step 3: Cross multiply
    436,710.32x = 654,675.89 × 170,408.90
  4. Step 4: Simplify right side
    436,710.32x = 111,562,598,271.42
  5. Step 5: Solve for x
    x = 111,562,598,271.42/436,710.32
  6. Step 6: Final answer
    x = 255,461.33

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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.