Home / 782,486.40-1,170,043.20-583,420.80

Finding the Fourth Proportional to 782,486.40, 1,170,043.20 and 583,420.80

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Solution

The fourth proportional to 782,486.40, 1,170,043.20 and 583,420.80 is: 872,382.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,486.40 : 1,170,043.20 = 583,420.80 : x
  2. Step 2: Convert to fraction form
    782,486.40/1,170,043.20 = 583,420.80/x
  3. Step 3: Cross multiply
    782,486.40x = 1,170,043.20 × 583,420.80
  4. Step 4: Simplify right side
    782,486.40x = 682,627,539,778.56
  5. Step 5: Solve for x
    x = 682,627,539,778.56/782,486.40
  6. Step 6: Final answer
    x = 872,382.63

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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.