Finding the Fourth Proportional to 657,687.60, 986,239.80 and 302,518.80
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Solution
The fourth proportional to 657,687.60, 986,239.80 and 302,518.80 is: 453,644.07
Step by Step Solution
- Step 1: Write the proportion equation
657,687.60 : 986,239.80 = 302,518.80 : x - Step 2: Convert to fraction form
657,687.60/986,239.80 = 302,518.80/x - Step 3: Cross multiply
657,687.60x = 986,239.80 × 302,518.80 - Step 4: Simplify right side
657,687.60x = 298,356,080,808.24 - Step 5: Solve for x
x = 298,356,080,808.24/657,687.60 - Step 6: Final answer
x = 453,644.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.