Finding the Fourth Proportional to 500,714.07, 690,985.58 and 271,272.94
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Solution
The fourth proportional to 500,714.07, 690,985.58 and 271,272.94 is: 374,356.75
Step by Step Solution
- Step 1: Write the proportion equation
500,714.07 : 690,985.58 = 271,272.94 : x - Step 2: Convert to fraction form
500,714.07/690,985.58 = 271,272.94/x - Step 3: Cross multiply
500,714.07x = 690,985.58 × 271,272.94 - Step 4: Simplify right side
500,714.07x = 187,445,689,784.21 - Step 5: Solve for x
x = 187,445,689,784.21/500,714.07 - Step 6: Final answer
x = 374,356.75
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1.5x scale
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.