Finding the Fourth Proportional to 1,287,217.74, 1,776,354.66 and 714,256.68
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Solution
The fourth proportional to 1,287,217.74, 1,776,354.66 and 714,256.68 is: 985,670.99
Step by Step Solution
- Step 1: Write the proportion equation
1,287,217.74 : 1,776,354.66 = 714,256.68 : x - Step 2: Convert to fraction form
1,287,217.74/1,776,354.66 = 714,256.68/x - Step 3: Cross multiply
1,287,217.74x = 1,776,354.66 × 714,256.68 - Step 4: Simplify right side
1,287,217.74x = 1,268,773,181,954.13 - Step 5: Solve for x
x = 1,268,773,181,954.13/1,287,217.74 - Step 6: Final answer
x = 985,670.99
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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.