Finding the Fourth Proportional to 445,816.68, 615,294.55 and 284,778.99
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Solution
The fourth proportional to 445,816.68, 615,294.55 and 284,778.99 is: 393,038.14
Step by Step Solution
- Step 1: Write the proportion equation
445,816.68 : 615,294.55 = 284,778.99 : x - Step 2: Convert to fraction form
445,816.68/615,294.55 = 284,778.99/x - Step 3: Cross multiply
445,816.68x = 615,294.55 × 284,778.99 - Step 4: Simplify right side
445,816.68x = 175,222,960,501.51 - Step 5: Solve for x
x = 175,222,960,501.51/445,816.68 - Step 6: Final answer
x = 393,038.14
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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.