Finding the Fourth Proportional to 779,909.78, 1,169,906.18 and 247,472.48
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Solution
The fourth proportional to 779,909.78, 1,169,906.18 and 247,472.48 is: 371,221.88
Step by Step Solution
- Step 1: Write the proportion equation
779,909.78 : 1,169,906.18 = 247,472.48 : x - Step 2: Convert to fraction form
779,909.78/1,169,906.18 = 247,472.48/x - Step 3: Cross multiply
779,909.78x = 1,169,906.18 × 247,472.48 - Step 4: Simplify right side
779,909.78x = 289,519,576,645.03 - Step 5: Solve for x
x = 289,519,576,645.03/779,909.78 - Step 6: Final answer
x = 371,221.88
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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.