Finding the Fourth Proportional to 485,319.98, 669,791.66 and 291,791.00
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Solution
The fourth proportional to 485,319.98, 669,791.66 and 291,791.00 is: 402,701.69
Step by Step Solution
- Step 1: Write the proportion equation
485,319.98 : 669,791.66 = 291,791.00 : x - Step 2: Convert to fraction form
485,319.98/669,791.66 = 291,791.00/x - Step 3: Cross multiply
485,319.98x = 669,791.66 × 291,791.00 - Step 4: Simplify right side
485,319.98x = 195,439,173,455.15 - Step 5: Solve for x
x = 195,439,173,455.15/485,319.98 - Step 6: Final answer
x = 402,701.69
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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.