Finding the Fourth Proportional to 847,782.80, 1,273,747.80 and 637,830.80
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Solution
The fourth proportional to 847,782.80, 1,273,747.80 and 637,830.80 is: 958,306.28
Step by Step Solution
- Step 1: Write the proportion equation
847,782.80 : 1,273,747.80 = 637,830.80 : x - Step 2: Convert to fraction form
847,782.80/1,273,747.80 = 637,830.80/x - Step 3: Cross multiply
847,782.80x = 1,273,747.80 × 637,830.80 - Step 4: Simplify right side
847,782.80x = 812,435,578,272.24 - Step 5: Solve for x
x = 812,435,578,272.24/847,782.80 - Step 6: Final answer
x = 958,306.28
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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.