Home / 807,710.70-1,212,550.20-408,145.80

Finding the Fourth Proportional to 807,710.70, 1,212,550.20 and 408,145.80

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Solution

The fourth proportional to 807,710.70, 1,212,550.20 and 408,145.80 is: 612,716.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,710.70 : 1,212,550.20 = 408,145.80 : x
  2. Step 2: Convert to fraction form
    807,710.70/1,212,550.20 = 408,145.80/x
  3. Step 3: Cross multiply
    807,710.70x = 1,212,550.20 × 408,145.80
  4. Step 4: Simplify right side
    807,710.70x = 494,897,271,419.16
  5. Step 5: Solve for x
    x = 494,897,271,419.16/807,710.70
  6. Step 6: Final answer
    x = 612,716.00

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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.