Home / 1,110,090.80-1,669,072.80-936,880.40

Finding the Fourth Proportional to 1,110,090.80, 1,669,072.80 and 936,880.40

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Solution

The fourth proportional to 1,110,090.80, 1,669,072.80 and 936,880.40 is: 1,408,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,090.80 : 1,669,072.80 = 936,880.40 : x
  2. Step 2: Convert to fraction form
    1,110,090.80/1,669,072.80 = 936,880.40/x
  3. Step 3: Cross multiply
    1,110,090.80x = 1,669,072.80 × 936,880.40
  4. Step 4: Simplify right side
    1,110,090.80x = 1,563,721,592,493.12
  5. Step 5: Solve for x
    x = 1,563,721,592,493.12/1,110,090.80
  6. Step 6: Final answer
    x = 1,408,642.96

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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.