Finding the Fourth Proportional to 755,146.08, 1,042,122.24 and 415,635.12
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Solution
The fourth proportional to 755,146.08, 1,042,122.24 and 415,635.12 is: 573,587.83
Step by Step Solution
- Step 1: Write the proportion equation
755,146.08 : 1,042,122.24 = 415,635.12 : x - Step 2: Convert to fraction form
755,146.08/1,042,122.24 = 415,635.12/x - Step 3: Cross multiply
755,146.08x = 1,042,122.24 × 415,635.12 - Step 4: Simplify right side
755,146.08x = 433,142,602,277.07 - Step 5: Solve for x
x = 433,142,602,277.07/755,146.08 - Step 6: Final answer
x = 573,587.83
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1.5x scale
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.