Finding the Fourth Proportional to 665,890.47, 918,703.98 and 379,207.53
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Solution
The fourth proportional to 665,890.47, 918,703.98 and 379,207.53 is: 523,178.33
Step by Step Solution
- Step 1: Write the proportion equation
665,890.47 : 918,703.98 = 379,207.53 : x - Step 2: Convert to fraction form
665,890.47/918,703.98 = 379,207.53/x - Step 3: Cross multiply
665,890.47x = 918,703.98 × 379,207.53 - Step 4: Simplify right side
665,890.47x = 348,379,467,056.97 - Step 5: Solve for x
x = 348,379,467,056.97/665,890.47 - Step 6: Final answer
x = 523,178.33
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.