Finding the Fourth Proportional to 626,691.68, 864,743.28 and 358,367.84
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Solution
The fourth proportional to 626,691.68, 864,743.28 and 358,367.84 is: 494,495.45
Step by Step Solution
- Step 1: Write the proportion equation
626,691.68 : 864,743.28 = 358,367.84 : x - Step 2: Convert to fraction form
626,691.68/864,743.28 = 358,367.84/x - Step 3: Cross multiply
626,691.68x = 864,743.28 × 358,367.84 - Step 4: Simplify right side
626,691.68x = 309,896,181,408.12 - Step 5: Solve for x
x = 309,896,181,408.12/626,691.68 - Step 6: Final answer
x = 494,495.45
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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.