Finding the Fourth Proportional to 2,319,478.88, 3,201,056.71 and 1,287,182.53
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Solution
The fourth proportional to 2,319,478.88, 3,201,056.71 and 1,287,182.53 is: 1,776,409.48
Step by Step Solution
- Step 1: Write the proportion equation
2,319,478.88 : 3,201,056.71 = 1,287,182.53 : x - Step 2: Convert to fraction form
2,319,478.88/3,201,056.71 = 1,287,182.53/x - Step 3: Cross multiply
2,319,478.88x = 3,201,056.71 × 1,287,182.53 - Step 4: Simplify right side
2,319,478.88x = 4,120,344,274,651.28 - Step 5: Solve for x
x = 4,120,344,274,651.28/2,319,478.88 - Step 6: Final answer
x = 1,776,409.48
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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.