Finding the Fourth Proportional to 1,442,571.12, 2,164,537.08 and 643,781.52
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Solution
The fourth proportional to 1,442,571.12, 2,164,537.08 and 643,781.52 is: 965,975.92
Step by Step Solution
- Step 1: Write the proportion equation
1,442,571.12 : 2,164,537.08 = 643,781.52 : x - Step 2: Convert to fraction form
1,442,571.12/2,164,537.08 = 643,781.52/x - Step 3: Cross multiply
1,442,571.12x = 2,164,537.08 × 643,781.52 - Step 4: Simplify right side
1,442,571.12x = 1,393,488,971,458.76 - Step 5: Solve for x
x = 1,393,488,971,458.76/1,442,571.12 - Step 6: Final answer
x = 965,975.92
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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.