Finding the Fourth Proportional to 1,248,422.90, 1,722,823.60 and 675,463.04
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Solution
The fourth proportional to 1,248,422.90, 1,722,823.60 and 675,463.04 is: 932,138.99
Step by Step Solution
- Step 1: Write the proportion equation
1,248,422.90 : 1,722,823.60 = 675,463.04 : x - Step 2: Convert to fraction form
1,248,422.90/1,722,823.60 = 675,463.04/x - Step 3: Cross multiply
1,248,422.90x = 1,722,823.60 × 675,463.04 - Step 4: Simplify right side
1,248,422.90x = 1,163,703,666,239.74 - Step 5: Solve for x
x = 1,163,703,666,239.74/1,248,422.90 - Step 6: Final answer
x = 932,138.99
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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.