Home / 1,412,657.85-2,118,939.93-613,940.34

Finding the Fourth Proportional to 1,412,657.85, 2,118,939.93 and 613,940.34

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Solution

The fourth proportional to 1,412,657.85, 2,118,939.93 and 613,940.34 is: 920,890.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,657.85 : 2,118,939.93 = 613,940.34 : x
  2. Step 2: Convert to fraction form
    1,412,657.85/2,118,939.93 = 613,940.34/x
  3. Step 3: Cross multiply
    1,412,657.85x = 2,118,939.93 × 613,940.34
  4. Step 4: Simplify right side
    1,412,657.85x = 1,300,902,701,063.78
  5. Step 5: Solve for x
    x = 1,300,902,701,063.78/1,412,657.85
  6. Step 6: Final answer
    x = 920,890.15

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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.