Finding the Fourth Proportional to 4,381,605.40, 6,561,348.90 and 2,877,554.20
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Solution
The fourth proportional to 4,381,605.40, 6,561,348.90 and 2,877,554.20 is: 4,309,068.33
Step by Step Solution
- Step 1: Write the proportion equation
4,381,605.40 : 6,561,348.90 = 2,877,554.20 : x - Step 2: Convert to fraction form
4,381,605.40/6,561,348.90 = 2,877,554.20/x - Step 3: Cross multiply
4,381,605.40x = 6,561,348.90 × 2,877,554.20 - Step 4: Simplify right side
4,381,605.40x = 18,880,637,084,860.38 - Step 5: Solve for x
x = 18,880,637,084,860.38/4,381,605.40 - Step 6: Final answer
x = 4,309,068.33
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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.