Finding the Fourth Proportional to 1,585,866.20, 2,188,497.53 and 860,713.93
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Solution
The fourth proportional to 1,585,866.20, 2,188,497.53 and 860,713.93 is: 1,187,786.40
Step by Step Solution
- Step 1: Write the proportion equation
1,585,866.20 : 2,188,497.53 = 860,713.93 : x - Step 2: Convert to fraction form
1,585,866.20/2,188,497.53 = 860,713.93/x - Step 3: Cross multiply
1,585,866.20x = 2,188,497.53 × 860,713.93 - Step 4: Simplify right side
1,585,866.20x = 1,883,670,309,841.59 - Step 5: Solve for x
x = 1,883,670,309,841.59/1,585,866.20 - Step 6: Final answer
x = 1,187,786.40
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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.