Home / 1,325,362.40-1,988,043.60-905,458.40

Finding the Fourth Proportional to 1,325,362.40, 1,988,043.60 and 905,458.40

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Solution

The fourth proportional to 1,325,362.40, 1,988,043.60 and 905,458.40 is: 1,358,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,362.40 : 1,988,043.60 = 905,458.40 : x
  2. Step 2: Convert to fraction form
    1,325,362.40/1,988,043.60 = 905,458.40/x
  3. Step 3: Cross multiply
    1,325,362.40x = 1,988,043.60 × 905,458.40
  4. Step 4: Simplify right side
    1,325,362.40x = 1,800,090,777,186.24
  5. Step 5: Solve for x
    x = 1,800,090,777,186.24/1,325,362.40
  6. Step 6: Final answer
    x = 1,358,187.60

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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.