Finding the Fourth Proportional to 487,895.99, 673,366.91 and 281,124.80
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Solution
The fourth proportional to 487,895.99, 673,366.91 and 281,124.80 is: 387,992.81
Step by Step Solution
- Step 1: Write the proportion equation
487,895.99 : 673,366.91 = 281,124.80 : x - Step 2: Convert to fraction form
487,895.99/673,366.91 = 281,124.80/x - Step 3: Cross multiply
487,895.99x = 673,366.91 × 281,124.80 - Step 4: Simplify right side
487,895.99x = 189,300,137,900.37 - Step 5: Solve for x
x = 189,300,137,900.37/487,895.99 - Step 6: Final answer
x = 387,992.81
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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.