Finding the Fourth Proportional to 1,432,990.62, 1,977,542.74 and 779,620.35
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Solution
The fourth proportional to 1,432,990.62, 1,977,542.74 and 779,620.35 is: 1,075,884.62
Step by Step Solution
- Step 1: Write the proportion equation
1,432,990.62 : 1,977,542.74 = 779,620.35 : x - Step 2: Convert to fraction form
1,432,990.62/1,977,542.74 = 779,620.35/x - Step 3: Cross multiply
1,432,990.62x = 1,977,542.74 × 779,620.35 - Step 4: Simplify right side
1,432,990.62x = 1,541,732,567,556.66 - Step 5: Solve for x
x = 1,541,732,567,556.66/1,432,990.62 - Step 6: Final answer
x = 1,075,884.62
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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.