Home / 857,289.40-1,284,621.90-810,050.20

Finding the Fourth Proportional to 857,289.40, 1,284,621.90 and 810,050.20

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Solution

The fourth proportional to 857,289.40, 1,284,621.90 and 810,050.20 is: 1,213,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,289.40 : 1,284,621.90 = 810,050.20 : x
  2. Step 2: Convert to fraction form
    857,289.40/1,284,621.90 = 810,050.20/x
  3. Step 3: Cross multiply
    857,289.40x = 1,284,621.90 × 810,050.20
  4. Step 4: Simplify right side
    857,289.40x = 1,040,608,227,019.38
  5. Step 5: Solve for x
    x = 1,040,608,227,019.38/857,289.40
  6. Step 6: Final answer
    x = 1,213,835.41

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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.