Finding the Fourth Proportional to 5,340,403.40, 8,010,605.10 and 3,912,729.80
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Solution
The fourth proportional to 5,340,403.40, 8,010,605.10 and 3,912,729.80 is: 5,869,094.70
Step by Step Solution
- Step 1: Write the proportion equation
5,340,403.40 : 8,010,605.10 = 3,912,729.80 : x - Step 2: Convert to fraction form
5,340,403.40/8,010,605.10 = 3,912,729.80/x - Step 3: Cross multiply
5,340,403.40x = 8,010,605.10 × 3,912,729.80 - Step 4: Simplify right side
5,340,403.40x = 31,343,333,290,801.98 - Step 5: Solve for x
x = 31,343,333,290,801.98/5,340,403.40 - Step 6: Final answer
x = 5,869,094.70
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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.