Finding the Fourth Proportional to 419,372.94, 578,714.08 and 238,060.63
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Solution
The fourth proportional to 419,372.94, 578,714.08 and 238,060.63 is: 328,511.99
Step by Step Solution
- Step 1: Write the proportion equation
419,372.94 : 578,714.08 = 238,060.63 : x - Step 2: Convert to fraction form
419,372.94/578,714.08 = 238,060.63/x - Step 3: Cross multiply
419,372.94x = 578,714.08 × 238,060.63 - Step 4: Simplify right side
419,372.94x = 137,769,038,474.67 - Step 5: Solve for x
x = 137,769,038,474.67/419,372.94 - Step 6: Final answer
x = 328,511.99
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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.