Finding the Fourth Proportional to 869,137.40, 1,199,412.27 and 481,980.08
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Solution
The fourth proportional to 869,137.40, 1,199,412.27 and 481,980.08 is: 665,133.98
Step by Step Solution
- Step 1: Write the proportion equation
869,137.40 : 1,199,412.27 = 481,980.08 : x - Step 2: Convert to fraction form
869,137.40/1,199,412.27 = 481,980.08/x - Step 3: Cross multiply
869,137.40x = 1,199,412.27 × 481,980.08 - Step 4: Simplify right side
869,137.40x = 578,092,815,850.52 - Step 5: Solve for x
x = 578,092,815,850.52/869,137.40 - Step 6: Final answer
x = 665,133.98
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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.