Finding the Fourth Proportional to 643,480.36, 888,044.88 and 371,559.70
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Solution
The fourth proportional to 643,480.36, 888,044.88 and 371,559.70 is: 512,776.63
Step by Step Solution
- Step 1: Write the proportion equation
643,480.36 : 888,044.88 = 371,559.70 : x - Step 2: Convert to fraction form
643,480.36/888,044.88 = 371,559.70/x - Step 3: Cross multiply
643,480.36x = 888,044.88 × 371,559.70 - Step 4: Simplify right side
643,480.36x = 329,961,689,199.34 - Step 5: Solve for x
x = 329,961,689,199.34/643,480.36 - Step 6: Final answer
x = 512,776.63
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1.5x scale
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.