Home / 1,939,472.20-2,907,855.78-859,397.32

Finding the Fourth Proportional to 1,939,472.20, 2,907,855.78 and 859,397.32

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Solution

The fourth proportional to 1,939,472.20, 2,907,855.78 and 859,397.32 is: 1,288,496.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,472.20 : 2,907,855.78 = 859,397.32 : x
  2. Step 2: Convert to fraction form
    1,939,472.20/2,907,855.78 = 859,397.32/x
  3. Step 3: Cross multiply
    1,939,472.20x = 2,907,855.78 × 859,397.32
  4. Step 4: Simplify right side
    1,939,472.20x = 2,499,003,464,278.51
  5. Step 5: Solve for x
    x = 2,499,003,464,278.51/1,939,472.20
  6. Step 6: Final answer
    x = 1,288,496.67

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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.