Finding the Fourth Proportional to 427,176.09, 589,987.34 and 290,973.86
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Solution
The fourth proportional to 427,176.09, 589,987.34 and 290,973.86 is: 401,873.83
Step by Step Solution
- Step 1: Write the proportion equation
427,176.09 : 589,987.34 = 290,973.86 : x - Step 2: Convert to fraction form
427,176.09/589,987.34 = 290,973.86/x - Step 3: Cross multiply
427,176.09x = 589,987.34 × 290,973.86 - Step 4: Simplify right side
427,176.09x = 171,670,889,266.13 - Step 5: Solve for x
x = 171,670,889,266.13/427,176.09 - Step 6: Final answer
x = 401,873.83
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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.