Finding the Fourth Proportional to 1,660,862.14, 2,291,989.74 and 896,915.63
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Solution
The fourth proportional to 1,660,862.14, 2,291,989.74 and 896,915.63 is: 1,237,743.57
Step by Step Solution
- Step 1: Write the proportion equation
1,660,862.14 : 2,291,989.74 = 896,915.63 : x - Step 2: Convert to fraction form
1,660,862.14/2,291,989.74 = 896,915.63/x - Step 3: Cross multiply
1,660,862.14x = 2,291,989.74 × 896,915.63 - Step 4: Simplify right side
1,660,862.14x = 2,055,721,423,972.18 - Step 5: Solve for x
x = 2,055,721,423,972.18/1,660,862.14 - Step 6: Final answer
x = 1,237,743.57
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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.