Finding the Fourth Proportional to 1,278,531.36, 1,917,298.56 and 479,376.48
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Solution
The fourth proportional to 1,278,531.36, 1,917,298.56 and 479,376.48 is: 718,877.82
Step by Step Solution
- Step 1: Write the proportion equation
1,278,531.36 : 1,917,298.56 = 479,376.48 : x - Step 2: Convert to fraction form
1,278,531.36/1,917,298.56 = 479,376.48/x - Step 3: Cross multiply
1,278,531.36x = 1,917,298.56 × 479,376.48 - Step 4: Simplify right side
1,278,531.36x = 919,107,834,801.87 - Step 5: Solve for x
x = 919,107,834,801.87/1,278,531.36 - Step 6: Final answer
x = 718,877.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.