Finding the Fourth Proportional to 1,557,392.58, 2,149,328.25 and 878,470.02
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Solution
The fourth proportional to 1,557,392.58, 2,149,328.25 and 878,470.02 is: 1,212,359.98
Step by Step Solution
- Step 1: Write the proportion equation
1,557,392.58 : 2,149,328.25 = 878,470.02 : x - Step 2: Convert to fraction form
1,557,392.58/2,149,328.25 = 878,470.02/x - Step 3: Cross multiply
1,557,392.58x = 2,149,328.25 × 878,470.02 - Step 4: Simplify right side
1,557,392.58x = 1,888,120,430,764.07 - Step 5: Solve for x
x = 1,888,120,430,764.07/1,557,392.58 - Step 6: Final answer
x = 1,212,359.98
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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.