Finding the Fourth Proportional to 1,542,985.68, 2,128,859.64 and 998,258.88
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Solution
The fourth proportional to 1,542,985.68, 2,128,859.64 and 998,258.88 is: 1,377,299.26
Step by Step Solution
- Step 1: Write the proportion equation
1,542,985.68 : 2,128,859.64 = 998,258.88 : x - Step 2: Convert to fraction form
1,542,985.68/2,128,859.64 = 998,258.88/x - Step 3: Cross multiply
1,542,985.68x = 2,128,859.64 × 998,258.88 - Step 4: Simplify right side
1,542,985.68x = 2,125,153,039,903.60 - Step 5: Solve for x
x = 2,125,153,039,903.60/1,542,985.68 - Step 6: Final answer
x = 1,377,299.26
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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.