Finding the Fourth Proportional to 1,557,668.92, 2,149,683.44 and 878,590.84
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Solution
The fourth proportional to 1,557,668.92, 2,149,683.44 and 878,590.84 is: 1,212,511.95
Step by Step Solution
- Step 1: Write the proportion equation
1,557,668.92 : 2,149,683.44 = 878,590.84 : x - Step 2: Convert to fraction form
1,557,668.92/2,149,683.44 = 878,590.84/x - Step 3: Cross multiply
1,557,668.92x = 2,149,683.44 × 878,590.84 - Step 4: Simplify right side
1,557,668.92x = 1,888,692,179,283.69 - Step 5: Solve for x
x = 1,888,692,179,283.69/1,557,668.92 - Step 6: Final answer
x = 1,212,511.95
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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.