Home / 1,325,000.70-1,987,501.05-876,228.30

Finding the Fourth Proportional to 1,325,000.70, 1,987,501.05 and 876,228.30

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Solution

The fourth proportional to 1,325,000.70, 1,987,501.05 and 876,228.30 is: 1,314,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,000.70 : 1,987,501.05 = 876,228.30 : x
  2. Step 2: Convert to fraction form
    1,325,000.70/1,987,501.05 = 876,228.30/x
  3. Step 3: Cross multiply
    1,325,000.70x = 1,987,501.05 × 876,228.30
  4. Step 4: Simplify right side
    1,325,000.70x = 1,741,504,666,289.72
  5. Step 5: Solve for x
    x = 1,741,504,666,289.72/1,325,000.70
  6. Step 6: Final answer
    x = 1,314,342.45

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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.