Finding the Fourth Proportional to 1,958,642.74, 2,698,480.80 and 1,515,594.05
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Solution
The fourth proportional to 1,958,642.74, 2,698,480.80 and 1,515,594.05 is: 2,088,079.34
Step by Step Solution
- Step 1: Write the proportion equation
1,958,642.74 : 2,698,480.80 = 1,515,594.05 : x - Step 2: Convert to fraction form
1,958,642.74/2,698,480.80 = 1,515,594.05/x - Step 3: Cross multiply
1,958,642.74x = 2,698,480.80 × 1,515,594.05 - Step 4: Simplify right side
1,958,642.74x = 4,089,801,444,519.24 - Step 5: Solve for x
x = 4,089,801,444,519.24/1,958,642.74 - Step 6: Final answer
x = 2,088,079.34
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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.