Home / 1,431,876.81-2,151,751.85-1,338,251.34

Finding the Fourth Proportional to 1,431,876.81, 2,151,751.85 and 1,338,251.34

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Solution

The fourth proportional to 1,431,876.81, 2,151,751.85 and 1,338,251.34 is: 2,011,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,876.81 : 2,151,751.85 = 1,338,251.34 : x
  2. Step 2: Convert to fraction form
    1,431,876.81/2,151,751.85 = 1,338,251.34/x
  3. Step 3: Cross multiply
    1,431,876.81x = 2,151,751.85 × 1,338,251.34
  4. Step 4: Simplify right side
    1,431,876.81x = 2,879,584,796,609.98
  5. Step 5: Solve for x
    x = 2,879,584,796,609.98/1,431,876.81
  6. Step 6: Final answer
    x = 2,011,056.24

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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.