Finding the Fourth Proportional to 489,675.80, 734,513.70 and 402,195.80
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Solution
The fourth proportional to 489,675.80, 734,513.70 and 402,195.80 is: 603,293.70
Step by Step Solution
- Step 1: Write the proportion equation
489,675.80 : 734,513.70 = 402,195.80 : x - Step 2: Convert to fraction form
489,675.80/734,513.70 = 402,195.80/x - Step 3: Cross multiply
489,675.80x = 734,513.70 × 402,195.80 - Step 4: Simplify right side
489,675.80x = 295,418,325,182.46 - Step 5: Solve for x
x = 295,418,325,182.46/489,675.80 - Step 6: Final answer
x = 603,293.70
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1.5x scale
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.