Finding the Fourth Proportional to 1,179,062.86, 1,768,968.13 and 420,888.05
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Solution
The fourth proportional to 1,179,062.86, 1,768,968.13 and 420,888.05 is: 631,465.53
Step by Step Solution
- Step 1: Write the proportion equation
1,179,062.86 : 1,768,968.13 = 420,888.05 : x - Step 2: Convert to fraction form
1,179,062.86/1,768,968.13 = 420,888.05/x - Step 3: Cross multiply
1,179,062.86x = 1,768,968.13 × 420,888.05 - Step 4: Simplify right side
1,179,062.86x = 744,537,555,802.36 - Step 5: Solve for x
x = 744,537,555,802.36/1,179,062.86 - Step 6: Final answer
x = 631,465.53
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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.