Home / 682,681.40-1,024,329.30-308,511.80

Finding the Fourth Proportional to 682,681.40, 1,024,329.30 and 308,511.80

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Solution

The fourth proportional to 682,681.40, 1,024,329.30 and 308,511.80 is: 462,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,681.40 : 1,024,329.30 = 308,511.80 : x
  2. Step 2: Convert to fraction form
    682,681.40/1,024,329.30 = 308,511.80/x
  3. Step 3: Cross multiply
    682,681.40x = 1,024,329.30 × 308,511.80
  4. Step 4: Simplify right side
    682,681.40x = 316,017,676,135.74
  5. Step 5: Solve for x
    x = 316,017,676,135.74/682,681.40
  6. Step 6: Final answer
    x = 462,906.53

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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.