Finding the Fourth Proportional to 495,175.60, 683,344.38 and 280,357.12
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Solution
The fourth proportional to 495,175.60, 683,344.38 and 280,357.12 is: 386,893.99
Step by Step Solution
- Step 1: Write the proportion equation
495,175.60 : 683,344.38 = 280,357.12 : x - Step 2: Convert to fraction form
495,175.60/683,344.38 = 280,357.12/x - Step 3: Cross multiply
495,175.60x = 683,344.38 × 280,357.12 - Step 4: Simplify right side
495,175.60x = 191,580,462,344.99 - Step 5: Solve for x
x = 191,580,462,344.99/495,175.60 - Step 6: Final answer
x = 386,893.99
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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.