Finding the Fourth Proportional to 1,585,642.24, 2,188,192.02 and 860,489.74
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Solution
The fourth proportional to 1,585,642.24, 2,188,192.02 and 860,489.74 is: 1,187,478.95
Step by Step Solution
- Step 1: Write the proportion equation
1,585,642.24 : 2,188,192.02 = 860,489.74 : x - Step 2: Convert to fraction form
1,585,642.24/2,188,192.02 = 860,489.74/x - Step 3: Cross multiply
1,585,642.24x = 2,188,192.02 × 860,489.74 - Step 4: Simplify right side
1,585,642.24x = 1,882,916,782,359.87 - Step 5: Solve for x
x = 1,882,916,782,359.87/1,585,642.24 - Step 6: Final answer
x = 1,187,478.95
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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.