Finding the Fourth Proportional to 711,417.97, 1,067,128.77 and 290,693.84
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Solution
The fourth proportional to 711,417.97, 1,067,128.77 and 290,693.84 is: 436,041.50
Step by Step Solution
- Step 1: Write the proportion equation
711,417.97 : 1,067,128.77 = 290,693.84 : x - Step 2: Convert to fraction form
711,417.97/1,067,128.77 = 290,693.84/x - Step 3: Cross multiply
711,417.97x = 1,067,128.77 × 290,693.84 - Step 4: Simplify right side
711,417.97x = 310,207,759,925.78 - Step 5: Solve for x
x = 310,207,759,925.78/711,417.97 - Step 6: Final answer
x = 436,041.50
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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.