Home / 693,610.40-1,040,415.60-652,138.40

Finding the Fourth Proportional to 693,610.40, 1,040,415.60 and 652,138.40

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Solution

The fourth proportional to 693,610.40, 1,040,415.60 and 652,138.40 is: 978,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,610.40 : 1,040,415.60 = 652,138.40 : x
  2. Step 2: Convert to fraction form
    693,610.40/1,040,415.60 = 652,138.40/x
  3. Step 3: Cross multiply
    693,610.40x = 1,040,415.60 × 652,138.40
  4. Step 4: Simplify right side
    693,610.40x = 678,494,964,719.04
  5. Step 5: Solve for x
    x = 678,494,964,719.04/693,610.40
  6. Step 6: Final answer
    x = 978,207.60

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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.