Finding the Fourth Proportional to 1,378,387.94, 1,901,896.62 and 805,317.41
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Solution
The fourth proportional to 1,378,387.94, 1,901,896.62 and 805,317.41 is: 1,111,175.17
Step by Step Solution
- Step 1: Write the proportion equation
1,378,387.94 : 1,901,896.62 = 805,317.41 : x - Step 2: Convert to fraction form
1,378,387.94/1,901,896.62 = 805,317.41/x - Step 3: Cross multiply
1,378,387.94x = 1,901,896.62 × 805,317.41 - Step 4: Simplify right side
1,378,387.94x = 1,531,630,460,106.15 - Step 5: Solve for x
x = 1,531,630,460,106.15/1,378,387.94 - Step 6: Final answer
x = 1,111,175.17
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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.