Finding the Fourth Proportional to 1,557,239.76, 2,148,948.36 and 878,239.44
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Solution
The fourth proportional to 1,557,239.76, 2,148,948.36 and 878,239.44 is: 1,211,946.45
Step by Step Solution
- Step 1: Write the proportion equation
1,557,239.76 : 2,148,948.36 = 878,239.44 : x - Step 2: Convert to fraction form
1,557,239.76/2,148,948.36 = 878,239.44/x - Step 3: Cross multiply
1,557,239.76x = 2,148,948.36 × 878,239.44 - Step 4: Simplify right side
1,557,239.76x = 1,887,291,204,275.32 - Step 5: Solve for x
x = 1,887,291,204,275.32/1,557,239.76 - Step 6: Final answer
x = 1,211,946.45
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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.