Finding the Fourth Proportional to 1,319,458.14, 1,820,844.63 and 715,833.18
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Solution
The fourth proportional to 1,319,458.14, 1,820,844.63 and 715,833.18 is: 987,845.66
Step by Step Solution
- Step 1: Write the proportion equation
1,319,458.14 : 1,820,844.63 = 715,833.18 : x - Step 2: Convert to fraction form
1,319,458.14/1,820,844.63 = 715,833.18/x - Step 3: Cross multiply
1,319,458.14x = 1,820,844.63 × 715,833.18 - Step 4: Simplify right side
1,319,458.14x = 1,303,421,001,778.82 - Step 5: Solve for x
x = 1,303,421,001,778.82/1,319,458.14 - Step 6: Final answer
x = 987,845.66
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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.