Finding the Fourth Proportional to 857,678.37, 1,284,893.69 and 572,509.05
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Solution
The fourth proportional to 857,678.37, 1,284,893.69 and 572,509.05 is: 857,679.63
Step by Step Solution
- Step 1: Write the proportion equation
857,678.37 : 1,284,893.69 = 572,509.05 : x - Step 2: Convert to fraction form
857,678.37/1,284,893.69 = 572,509.05/x - Step 3: Cross multiply
857,678.37x = 1,284,893.69 × 572,509.05 - Step 4: Simplify right side
857,678.37x = 735,613,262,950.35 - Step 5: Solve for x
x = 735,613,262,950.35/857,678.37 - Step 6: Final answer
x = 857,679.63
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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.