Finding the Fourth Proportional to 613,631.99, 919,808.12 and 343,363.90
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Solution
The fourth proportional to 613,631.99, 919,808.12 and 343,363.90 is: 514,687.80
Step by Step Solution
- Step 1: Write the proportion equation
613,631.99 : 919,808.12 = 343,363.90 : x - Step 2: Convert to fraction form
613,631.99/919,808.12 = 343,363.90/x - Step 3: Cross multiply
613,631.99x = 919,808.12 × 343,363.90 - Step 4: Simplify right side
613,631.99x = 315,828,900,876.35 - Step 5: Solve for x
x = 315,828,900,876.35/613,631.99 - Step 6: Final answer
x = 514,687.80
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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.