Home / 1,960,678.20-2,705,681.91-1,089,490.38

Finding the Fourth Proportional to 1,960,678.20, 2,705,681.91 and 1,089,490.38

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Solution

The fourth proportional to 1,960,678.20, 2,705,681.91 and 1,089,490.38 is: 1,503,466.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960,678.20 : 2,705,681.91 = 1,089,490.38 : x
  2. Step 2: Convert to fraction form
    1,960,678.20/2,705,681.91 = 1,089,490.38/x
  3. Step 3: Cross multiply
    1,960,678.20x = 2,705,681.91 × 1,089,490.38
  4. Step 4: Simplify right side
    1,960,678.20x = 2,947,814,412,285.03
  5. Step 5: Solve for x
    x = 2,947,814,412,285.03/1,960,678.20
  6. Step 6: Final answer
    x = 1,503,466.71

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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.