Home / 1,338,048.40-2,007,072.60-939,139.60

Finding the Fourth Proportional to 1,338,048.40, 2,007,072.60 and 939,139.60

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Solution

The fourth proportional to 1,338,048.40, 2,007,072.60 and 939,139.60 is: 1,408,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,048.40 : 2,007,072.60 = 939,139.60 : x
  2. Step 2: Convert to fraction form
    1,338,048.40/2,007,072.60 = 939,139.60/x
  3. Step 3: Cross multiply
    1,338,048.40x = 2,007,072.60 × 939,139.60
  4. Step 4: Simplify right side
    1,338,048.40x = 1,884,921,358,734.96
  5. Step 5: Solve for x
    x = 1,884,921,358,734.96/1,338,048.40
  6. Step 6: Final answer
    x = 1,408,709.40

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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.