Finding the Fourth Proportional to 659,214.20, 987,509.10 and 343,848.80
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Solution
The fourth proportional to 659,214.20, 987,509.10 and 343,848.80 is: 515,088.75
Step by Step Solution
- Step 1: Write the proportion equation
659,214.20 : 987,509.10 = 343,848.80 : x - Step 2: Convert to fraction form
659,214.20/987,509.10 = 343,848.80/x - Step 3: Cross multiply
659,214.20x = 987,509.10 × 343,848.80 - Step 4: Simplify right side
659,214.20x = 339,553,819,024.08 - Step 5: Solve for x
x = 339,553,819,024.08/659,214.20 - Step 6: Final answer
x = 515,088.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.