Finding the Fourth Proportional to 818,536.16, 1,129,562.88 and 455,959.52
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Solution
The fourth proportional to 818,536.16, 1,129,562.88 and 455,959.52 is: 629,214.66
Step by Step Solution
- Step 1: Write the proportion equation
818,536.16 : 1,129,562.88 = 455,959.52 : x - Step 2: Convert to fraction form
818,536.16/1,129,562.88 = 455,959.52/x - Step 3: Cross multiply
818,536.16x = 1,129,562.88 × 455,959.52 - Step 4: Simplify right side
818,536.16x = 515,034,948,574.62 - Step 5: Solve for x
x = 515,034,948,574.62/818,536.16 - Step 6: Final answer
x = 629,214.66
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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.