Finding the Fourth Proportional to 645,194.97, 890,366.99 and 358,714.98
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Solution
The fourth proportional to 645,194.97, 890,366.99 and 358,714.98 is: 495,025.52
Step by Step Solution
- Step 1: Write the proportion equation
645,194.97 : 890,366.99 = 358,714.98 : x - Step 2: Convert to fraction form
645,194.97/890,366.99 = 358,714.98/x - Step 3: Cross multiply
645,194.97x = 890,366.99 × 358,714.98 - Step 4: Simplify right side
645,194.97x = 319,387,975,216.94 - Step 5: Solve for x
x = 319,387,975,216.94/645,194.97 - Step 6: Final answer
x = 495,025.52
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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.