Home / 1,939,706.98-2,678,021.16-1,429,520.74

Finding the Fourth Proportional to 1,939,706.98, 2,678,021.16 and 1,429,520.74

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Solution

The fourth proportional to 1,939,706.98, 2,678,021.16 and 1,429,520.74 is: 1,973,641.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,706.98 : 2,678,021.16 = 1,429,520.74 : x
  2. Step 2: Convert to fraction form
    1,939,706.98/2,678,021.16 = 1,429,520.74/x
  3. Step 3: Cross multiply
    1,939,706.98x = 2,678,021.16 × 1,429,520.74
  4. Step 4: Simplify right side
    1,939,706.98x = 3,828,286,790,378.86
  5. Step 5: Solve for x
    x = 3,828,286,790,378.86/1,939,706.98
  6. Step 6: Final answer
    x = 1,973,641.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.