Home / 1,009,469.80-1,515,516.90-810,015.40

Finding the Fourth Proportional to 1,009,469.80, 1,515,516.90 and 810,015.40

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Solution

The fourth proportional to 1,009,469.80, 1,515,516.90 and 810,015.40 is: 1,216,076.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,469.80 : 1,515,516.90 = 810,015.40 : x
  2. Step 2: Convert to fraction form
    1,009,469.80/1,515,516.90 = 810,015.40/x
  3. Step 3: Cross multiply
    1,009,469.80x = 1,515,516.90 × 810,015.40
  4. Step 4: Simplify right side
    1,009,469.80x = 1,227,592,027,960.26
  5. Step 5: Solve for x
    x = 1,227,592,027,960.26/1,009,469.80
  6. Step 6: Final answer
    x = 1,216,076.03

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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.