Finding the Fourth Proportional to 660,453.08, 911,428.62 and 358,647.08
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Solution
The fourth proportional to 660,453.08, 911,428.62 and 358,647.08 is: 494,934.80
Step by Step Solution
- Step 1: Write the proportion equation
660,453.08 : 911,428.62 = 358,647.08 : x - Step 2: Convert to fraction form
660,453.08/911,428.62 = 358,647.08/x - Step 3: Cross multiply
660,453.08x = 911,428.62 × 358,647.08 - Step 4: Simplify right side
660,453.08x = 326,881,213,191.43 - Step 5: Solve for x
x = 326,881,213,191.43/660,453.08 - Step 6: Final answer
x = 494,934.80
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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.