Finding the Fourth Proportional to 1,128,468.96, 1,557,277.20 and 612,222
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Solution
The fourth proportional to 1,128,468.96, 1,557,277.20 and 612,222 is: 844,860.95
Step by Step Solution
- Step 1: Write the proportion equation
1,128,468.96 : 1,557,277.20 = 612,222 : x - Step 2: Convert to fraction form
1,128,468.96/1,557,277.20 = 612,222/x - Step 3: Cross multiply
1,128,468.96x = 1,557,277.20 × 612,222 - Step 4: Simplify right side
1,128,468.96x = 953,399,361,938.40 - Step 5: Solve for x
x = 953,399,361,938.40/1,128,468.96 - Step 6: Final answer
x = 844,860.95
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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.