Home / 1,381,137.28-1,906,021.20-760,967.98

Finding the Fourth Proportional to 1,381,137.28, 1,906,021.20 and 760,967.98

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Solution

The fourth proportional to 1,381,137.28, 1,906,021.20 and 760,967.98 is: 1,050,164.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,137.28 : 1,906,021.20 = 760,967.98 : x
  2. Step 2: Convert to fraction form
    1,381,137.28/1,906,021.20 = 760,967.98/x
  3. Step 3: Cross multiply
    1,381,137.28x = 1,906,021.20 × 760,967.98
  4. Step 4: Simplify right side
    1,381,137.28x = 1,450,421,102,401.18
  5. Step 5: Solve for x
    x = 1,450,421,102,401.18/1,381,137.28
  6. Step 6: Final answer
    x = 1,050,164.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.