Finding the Fourth Proportional to 490,701.10, 736,051.65 and 420,717.10
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Solution
The fourth proportional to 490,701.10, 736,051.65 and 420,717.10 is: 631,075.65
Step by Step Solution
- Step 1: Write the proportion equation
490,701.10 : 736,051.65 = 420,717.10 : x - Step 2: Convert to fraction form
490,701.10/736,051.65 = 420,717.10/x - Step 3: Cross multiply
490,701.10x = 736,051.65 × 420,717.10 - Step 4: Simplify right side
490,701.10x = 309,669,515,638.22 - Step 5: Solve for x
x = 309,669,515,638.22/490,701.10 - Step 6: Final answer
x = 631,075.65
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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.