Finding the Fourth Proportional to 717,067.99, 989,516.25 and 394,715.13
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Solution
The fourth proportional to 717,067.99, 989,516.25 and 394,715.13 is: 544,686.19
Step by Step Solution
- Step 1: Write the proportion equation
717,067.99 : 989,516.25 = 394,715.13 : x - Step 2: Convert to fraction form
717,067.99/989,516.25 = 394,715.13/x - Step 3: Cross multiply
717,067.99x = 989,516.25 × 394,715.13 - Step 4: Simplify right side
717,067.99x = 390,577,031,545.18 - Step 5: Solve for x
x = 390,577,031,545.18/717,067.99 - Step 6: Final answer
x = 544,686.19
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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.