Home / 805,056.40-1,207,584.60-521,621.20

Finding the Fourth Proportional to 805,056.40, 1,207,584.60 and 521,621.20

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Solution

The fourth proportional to 805,056.40, 1,207,584.60 and 521,621.20 is: 782,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,056.40 : 1,207,584.60 = 521,621.20 : x
  2. Step 2: Convert to fraction form
    805,056.40/1,207,584.60 = 521,621.20/x
  3. Step 3: Cross multiply
    805,056.40x = 1,207,584.60 × 521,621.20
  4. Step 4: Simplify right side
    805,056.40x = 629,901,728,153.52
  5. Step 5: Solve for x
    x = 629,901,728,153.52/805,056.40
  6. Step 6: Final answer
    x = 782,431.80

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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.