Home / 1,378,722.87-1,902,610.22-766,862.46

Finding the Fourth Proportional to 1,378,722.87, 1,902,610.22 and 766,862.46

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Solution

The fourth proportional to 1,378,722.87, 1,902,610.22 and 766,862.46 is: 1,058,254.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,722.87 : 1,902,610.22 = 766,862.46 : x
  2. Step 2: Convert to fraction form
    1,378,722.87/1,902,610.22 = 766,862.46/x
  3. Step 3: Cross multiply
    1,378,722.87x = 1,902,610.22 × 766,862.46
  4. Step 4: Simplify right side
    1,378,722.87x = 1,459,040,353,730.34
  5. Step 5: Solve for x
    x = 1,459,040,353,730.34/1,378,722.87
  6. Step 6: Final answer
    x = 1,058,254.99

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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.