Finding the Fourth Proportional to 1,511,424.18, 2,270,285.55 and 1,275,228.18
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Solution
The fourth proportional to 1,511,424.18, 2,270,285.55 and 1,275,228.18 is: 1,915,499.40
Step by Step Solution
- Step 1: Write the proportion equation
1,511,424.18 : 2,270,285.55 = 1,275,228.18 : x - Step 2: Convert to fraction form
1,511,424.18/2,270,285.55 = 1,275,228.18/x - Step 3: Cross multiply
1,511,424.18x = 2,270,285.55 × 1,275,228.18 - Step 4: Simplify right side
1,511,424.18x = 2,895,132,110,006.80 - Step 5: Solve for x
x = 2,895,132,110,006.80/1,511,424.18 - Step 6: Final answer
x = 1,915,499.40
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1.5x scale
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.