Finding the Fourth Proportional to 1,346,291.19, 1,865,741.69 and 1,320,743.28
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Solution
The fourth proportional to 1,346,291.19, 1,865,741.69 and 1,320,743.28 is: 1,830,336.43
Step by Step Solution
- Step 1: Write the proportion equation
1,346,291.19 : 1,865,741.69 = 1,320,743.28 : x - Step 2: Convert to fraction form
1,346,291.19/1,865,741.69 = 1,320,743.28/x - Step 3: Cross multiply
1,346,291.19x = 1,865,741.69 × 1,320,743.28 - Step 4: Simplify right side
1,346,291.19x = 2,464,165,809,581.73 - Step 5: Solve for x
x = 2,464,165,809,581.73/1,346,291.19 - Step 6: Final answer
x = 1,830,336.43
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.