Finding the Fourth Proportional to 1,585,523.40, 2,188,011.20 and 860,352.68
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Solution
The fourth proportional to 1,585,523.40, 2,188,011.20 and 860,352.68 is: 1,187,280.67
Step by Step Solution
- Step 1: Write the proportion equation
1,585,523.40 : 2,188,011.20 = 860,352.68 : x - Step 2: Convert to fraction form
1,585,523.40/2,188,011.20 = 860,352.68/x - Step 3: Cross multiply
1,585,523.40x = 2,188,011.20 × 860,352.68 - Step 4: Simplify right side
1,585,523.40x = 1,882,461,284,548.20 - Step 5: Solve for x
x = 1,882,461,284,548.20/1,585,523.40 - Step 6: Final answer
x = 1,187,280.67
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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.