Home / 1,070,389.45-1,606,954.32-919,551.54

Finding the Fourth Proportional to 1,070,389.45, 1,606,954.32 and 919,551.54

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Solution

The fourth proportional to 1,070,389.45, 1,606,954.32 and 919,551.54 is: 1,380,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,389.45 : 1,606,954.32 = 919,551.54 : x
  2. Step 2: Convert to fraction form
    1,070,389.45/1,606,954.32 = 919,551.54/x
  3. Step 3: Cross multiply
    1,070,389.45x = 1,606,954.32 × 919,551.54
  4. Step 4: Simplify right side
    1,070,389.45x = 1,477,677,319,230.37
  5. Step 5: Solve for x
    x = 1,477,677,319,230.37/1,070,389.45
  6. Step 6: Final answer
    x = 1,380,504.38

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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.