Finding the Fourth Proportional to 1,580,754.80, 2,364,133.80 and 1,328,812.40
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Solution
The fourth proportional to 1,580,754.80, 2,364,133.80 and 1,328,812.40 is: 1,987,335.61
Step by Step Solution
- Step 1: Write the proportion equation
1,580,754.80 : 2,364,133.80 = 1,328,812.40 : x - Step 2: Convert to fraction form
1,580,754.80/2,364,133.80 = 1,328,812.40/x - Step 3: Cross multiply
1,580,754.80x = 2,364,133.80 × 1,328,812.40 - Step 4: Simplify right side
1,580,754.80x = 3,141,490,308,699.12 - Step 5: Solve for x
x = 3,141,490,308,699.12/1,580,754.80 - Step 6: Final answer
x = 1,987,335.61
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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.