Finding the Fourth Proportional to 1,370,304.19, 1,890,971.55 and 758,458.13
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Solution
The fourth proportional to 1,370,304.19, 1,890,971.55 and 758,458.13 is: 1,046,645.53
Step by Step Solution
- Step 1: Write the proportion equation
1,370,304.19 : 1,890,971.55 = 758,458.13 : x - Step 2: Convert to fraction form
1,370,304.19/1,890,971.55 = 758,458.13/x - Step 3: Cross multiply
1,370,304.19x = 1,890,971.55 × 758,458.13 - Step 4: Simplify right side
1,370,304.19x = 1,434,222,749,011.22 - Step 5: Solve for x
x = 1,434,222,749,011.22/1,370,304.19 - Step 6: Final answer
x = 1,046,645.53
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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.