Finding the Fourth Proportional to 1,181,777.90, 1,772,148.45 and 471,569.90
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Solution
The fourth proportional to 1,181,777.90, 1,772,148.45 and 471,569.90 is: 707,147.99
Step by Step Solution
- Step 1: Write the proportion equation
1,181,777.90 : 1,772,148.45 = 471,569.90 : x - Step 2: Convert to fraction form
1,181,777.90/1,772,148.45 = 471,569.90/x - Step 3: Cross multiply
1,181,777.90x = 1,772,148.45 × 471,569.90 - Step 4: Simplify right side
1,181,777.90x = 835,691,867,351.66 - Step 5: Solve for x
x = 835,691,867,351.66/1,181,777.90 - Step 6: Final answer
x = 707,147.99
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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.