Home / 1,267,430.40-1,901,433.60-426,067.20

Finding the Fourth Proportional to 1,267,430.40, 1,901,433.60 and 426,067.20

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Solution

The fourth proportional to 1,267,430.40, 1,901,433.60 and 426,067.20 is: 639,197.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,430.40 : 1,901,433.60 = 426,067.20 : x
  2. Step 2: Convert to fraction form
    1,267,430.40/1,901,433.60 = 426,067.20/x
  3. Step 3: Cross multiply
    1,267,430.40x = 1,901,433.60 × 426,067.20
  4. Step 4: Simplify right side
    1,267,430.40x = 810,138,489,937.92
  5. Step 5: Solve for x
    x = 810,138,489,937.92/1,267,430.40
  6. Step 6: Final answer
    x = 639,197.62

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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.