Finding the Fourth Proportional to 497,938.42, 687,151.74 and 283,078.54
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Solution
The fourth proportional to 497,938.42, 687,151.74 and 283,078.54 is: 390,646.52
Step by Step Solution
- Step 1: Write the proportion equation
497,938.42 : 687,151.74 = 283,078.54 : x - Step 2: Convert to fraction form
497,938.42/687,151.74 = 283,078.54/x - Step 3: Cross multiply
497,938.42x = 687,151.74 × 283,078.54 - Step 4: Simplify right side
497,938.42x = 194,517,911,317.66 - Step 5: Solve for x
x = 194,517,911,317.66/497,938.42 - Step 6: Final answer
x = 390,646.52
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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.