Home / 682,231.80-1,021,379.40-416,511.30

Finding the Fourth Proportional to 682,231.80, 1,021,379.40 and 416,511.30

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Solution

The fourth proportional to 682,231.80, 1,021,379.40 and 416,511.30 is: 623,565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,231.80 : 1,021,379.40 = 416,511.30 : x
  2. Step 2: Convert to fraction form
    682,231.80/1,021,379.40 = 416,511.30/x
  3. Step 3: Cross multiply
    682,231.80x = 1,021,379.40 × 416,511.30
  4. Step 4: Simplify right side
    682,231.80x = 425,416,061,687.22
  5. Step 5: Solve for x
    x = 425,416,061,687.22/682,231.80
  6. Step 6: Final answer
    x = 623,565.28

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1.5x scale

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.