Finding the Fourth Proportional to 992,085.12, 1,369,368.80 and 647,973.62
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Solution
The fourth proportional to 992,085.12, 1,369,368.80 and 647,973.62 is: 894,393.88
Step by Step Solution
- Step 1: Write the proportion equation
992,085.12 : 1,369,368.80 = 647,973.62 : x - Step 2: Convert to fraction form
992,085.12/1,369,368.80 = 647,973.62/x - Step 3: Cross multiply
992,085.12x = 1,369,368.80 × 647,973.62 - Step 4: Simplify right side
992,085.12x = 887,314,858,451.06 - Step 5: Solve for x
x = 887,314,858,451.06/992,085.12 - Step 6: Final answer
x = 894,393.88
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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.