Home / 682,321.80-1,021,514.40-416,601.30

Finding the Fourth Proportional to 682,321.80, 1,021,514.40 and 416,601.30

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Solution

The fourth proportional to 682,321.80, 1,021,514.40 and 416,601.30 is: 623,700.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,321.80 : 1,021,514.40 = 416,601.30 : x
  2. Step 2: Convert to fraction form
    682,321.80/1,021,514.40 = 416,601.30/x
  3. Step 3: Cross multiply
    682,321.80x = 1,021,514.40 × 416,601.30
  4. Step 4: Simplify right side
    682,321.80x = 425,564,227,008.72
  5. Step 5: Solve for x
    x = 425,564,227,008.72/682,321.80
  6. Step 6: Final answer
    x = 623,700.18

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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.