Finding the Fourth Proportional to 451,731.99, 623,503.44 and 306,783.03
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Solution
The fourth proportional to 451,731.99, 623,503.44 and 306,783.03 is: 423,437.52
Step by Step Solution
- Step 1: Write the proportion equation
451,731.99 : 623,503.44 = 306,783.03 : x - Step 2: Convert to fraction form
451,731.99/623,503.44 = 306,783.03/x - Step 3: Cross multiply
451,731.99x = 623,503.44 × 306,783.03 - Step 4: Simplify right side
451,731.99x = 191,280,274,538.62 - Step 5: Solve for x
x = 191,280,274,538.62/451,731.99 - Step 6: Final answer
x = 423,437.52
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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.