Finding the Fourth Proportional to 1,580,436.99, 2,181,002.88 and 855,284.70
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Solution
The fourth proportional to 1,580,436.99, 2,181,002.88 and 855,284.70 is: 1,180,292.80
Step by Step Solution
- Step 1: Write the proportion equation
1,580,436.99 : 2,181,002.88 = 855,284.70 : x - Step 2: Convert to fraction form
1,580,436.99/2,181,002.88 = 855,284.70/x - Step 3: Cross multiply
1,580,436.99x = 2,181,002.88 × 855,284.70 - Step 4: Simplify right side
1,580,436.99x = 1,865,378,393,919.94 - Step 5: Solve for x
x = 1,865,378,393,919.94/1,580,436.99 - Step 6: Final answer
x = 1,180,292.80
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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.