Finding the Fourth Proportional to 986,422.88, 1,361,268.24 and 556,721.12
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Solution
The fourth proportional to 986,422.88, 1,361,268.24 and 556,721.12 is: 768,277.78
Step by Step Solution
- Step 1: Write the proportion equation
986,422.88 : 1,361,268.24 = 556,721.12 : x - Step 2: Convert to fraction form
986,422.88/1,361,268.24 = 556,721.12/x - Step 3: Cross multiply
986,422.88x = 1,361,268.24 × 556,721.12 - Step 4: Simplify right side
986,422.88x = 757,846,779,193.23 - Step 5: Solve for x
x = 757,846,779,193.23/986,422.88 - Step 6: Final answer
x = 768,277.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.