Home / 1,265,000.72-1,897,110.60-665,636.36

Finding the Fourth Proportional to 1,265,000.72, 1,897,110.60 and 665,636.36

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Solution

The fourth proportional to 1,265,000.72, 1,897,110.60 and 665,636.36 is: 998,249.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,000.72 : 1,897,110.60 = 665,636.36 : x
  2. Step 2: Convert to fraction form
    1,265,000.72/1,897,110.60 = 665,636.36/x
  3. Step 3: Cross multiply
    1,265,000.72x = 1,897,110.60 × 665,636.36
  4. Step 4: Simplify right side
    1,265,000.72x = 1,262,785,794,301.42
  5. Step 5: Solve for x
    x = 1,262,785,794,301.42/1,265,000.72
  6. Step 6: Final answer
    x = 998,249.07

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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.