Finding the Fourth Proportional to 1,077,605.12, 1,616,349.09 and 329,651.12
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Solution
The fourth proportional to 1,077,605.12, 1,616,349.09 and 329,651.12 is: 494,458.76
Step by Step Solution
- Step 1: Write the proportion equation
1,077,605.12 : 1,616,349.09 = 329,651.12 : x - Step 2: Convert to fraction form
1,077,605.12/1,616,349.09 = 329,651.12/x - Step 3: Cross multiply
1,077,605.12x = 1,616,349.09 × 329,651.12 - Step 4: Simplify right side
1,077,605.12x = 532,831,287,829.48 - Step 5: Solve for x
x = 532,831,287,829.48/1,077,605.12 - Step 6: Final answer
x = 494,458.76
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.