Finding the Fourth Proportional to 486,737.08, 728,329.38 and 287,153.08
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Solution
The fourth proportional to 486,737.08, 728,329.38 and 287,153.08 is: 429,681.72
Step by Step Solution
- Step 1: Write the proportion equation
486,737.08 : 728,329.38 = 287,153.08 : x - Step 2: Convert to fraction form
486,737.08/728,329.38 = 287,153.08/x - Step 3: Cross multiply
486,737.08x = 728,329.38 × 287,153.08 - Step 4: Simplify right side
486,737.08x = 209,142,024,721.49 - Step 5: Solve for x
x = 209,142,024,721.49/486,737.08 - Step 6: Final answer
x = 429,681.72
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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.