Finding the Fourth Proportional to 489,677.80, 734,516.70 and 402,197.80
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Solution
The fourth proportional to 489,677.80, 734,516.70 and 402,197.80 is: 603,296.70
Step by Step Solution
- Step 1: Write the proportion equation
489,677.80 : 734,516.70 = 402,197.80 : x - Step 2: Convert to fraction form
489,677.80/734,516.70 = 402,197.80/x - Step 3: Cross multiply
489,677.80x = 734,516.70 × 402,197.80 - Step 4: Simplify right side
489,677.80x = 295,421,000,803.26 - Step 5: Solve for x
x = 295,421,000,803.26/489,677.80 - Step 6: Final answer
x = 603,296.70
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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.