Finding the Fourth Proportional to 790,415.84, 1,090,776.58 and 427,839.58
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Solution
The fourth proportional to 790,415.84, 1,090,776.58 and 427,839.58 is: 590,420.09
Step by Step Solution
- Step 1: Write the proportion equation
790,415.84 : 1,090,776.58 = 427,839.58 : x - Step 2: Convert to fraction form
790,415.84/1,090,776.58 = 427,839.58/x - Step 3: Cross multiply
790,415.84x = 1,090,776.58 × 427,839.58 - Step 4: Simplify right side
790,415.84x = 466,677,393,861.04 - Step 5: Solve for x
x = 466,677,393,861.04/790,415.84 - Step 6: Final answer
x = 590,420.09
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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.