Finding the Fourth Proportional to 821,776.12, 1,134,163.62 and 472,909.32
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Solution
The fourth proportional to 821,776.12, 1,134,163.62 and 472,909.32 is: 652,679.65
Step by Step Solution
- Step 1: Write the proportion equation
821,776.12 : 1,134,163.62 = 472,909.32 : x - Step 2: Convert to fraction form
821,776.12/1,134,163.62 = 472,909.32/x - Step 3: Cross multiply
821,776.12x = 1,134,163.62 × 472,909.32 - Step 4: Simplify right side
821,776.12x = 536,356,546,302.94 - Step 5: Solve for x
x = 536,356,546,302.94/821,776.12 - Step 6: Final answer
x = 652,679.65
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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.