Finding the Fourth Proportional to 1,243,319.61, 1,715,682.96 and 699,347.10
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Solution
The fourth proportional to 1,243,319.61, 1,715,682.96 and 699,347.10 is: 965,043.82
Step by Step Solution
- Step 1: Write the proportion equation
1,243,319.61 : 1,715,682.96 = 699,347.10 : x - Step 2: Convert to fraction form
1,243,319.61/1,715,682.96 = 699,347.10/x - Step 3: Cross multiply
1,243,319.61x = 1,715,682.96 × 699,347.10 - Step 4: Simplify right side
1,243,319.61x = 1,199,857,902,595.42 - Step 5: Solve for x
x = 1,199,857,902,595.42/1,243,319.61 - Step 6: Final answer
x = 965,043.82
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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.