Finding the Fourth Proportional to 660,026.99, 990,456.96 and 280,947.12
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Solution
The fourth proportional to 660,026.99, 990,456.96 and 280,947.12 is: 421,597.96
Step by Step Solution
- Step 1: Write the proportion equation
660,026.99 : 990,456.96 = 280,947.12 : x - Step 2: Convert to fraction form
660,026.99/990,456.96 = 280,947.12/x - Step 3: Cross multiply
660,026.99x = 990,456.96 × 280,947.12 - Step 4: Simplify right side
660,026.99x = 278,266,030,395.96 - Step 5: Solve for x
x = 278,266,030,395.96/660,026.99 - Step 6: Final answer
x = 421,597.96
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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.