Finding the Fourth Proportional to 986,788.74, 1,361,758.77 and 557,059.62
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Solution
The fourth proportional to 986,788.74, 1,361,758.77 and 557,059.62 is: 768,736.80
Step by Step Solution
- Step 1: Write the proportion equation
986,788.74 : 1,361,758.77 = 557,059.62 : x - Step 2: Convert to fraction form
986,788.74/1,361,758.77 = 557,059.62/x - Step 3: Cross multiply
986,788.74x = 1,361,758.77 × 557,059.62 - Step 4: Simplify right side
986,788.74x = 758,580,822,947.87 - Step 5: Solve for x
x = 758,580,822,947.87/986,788.74 - Step 6: Final answer
x = 768,736.80
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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.