Finding the Fourth Proportional to 977,821.20, 1,466,731.80 and 942,391.80
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Solution
The fourth proportional to 977,821.20, 1,466,731.80 and 942,391.80 is: 1,413,587.70
Step by Step Solution
- Step 1: Write the proportion equation
977,821.20 : 1,466,731.80 = 942,391.80 : x - Step 2: Convert to fraction form
977,821.20/1,466,731.80 = 942,391.80/x - Step 3: Cross multiply
977,821.20x = 1,466,731.80 × 942,391.80 - Step 4: Simplify right side
977,821.20x = 1,382,236,021,119.24 - Step 5: Solve for x
x = 1,382,236,021,119.24/977,821.20 - Step 6: Final answer
x = 1,413,587.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.