Finding the Fourth Proportional to 486,985.87, 672,027.60 and 272,127.70
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Solution
The fourth proportional to 486,985.87, 672,027.60 and 272,127.70 is: 375,529.02
Step by Step Solution
- Step 1: Write the proportion equation
486,985.87 : 672,027.60 = 272,127.70 : x - Step 2: Convert to fraction form
486,985.87/672,027.60 = 272,127.70/x - Step 3: Cross multiply
486,985.87x = 672,027.60 × 272,127.70 - Step 4: Simplify right side
486,985.87x = 182,877,326,985.03 - Step 5: Solve for x
x = 182,877,326,985.03/486,985.87 - Step 6: Final answer
x = 375,529.02
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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.