Finding the Fourth Proportional to 1,352,405.19, 1,866,236.31 and 740,565.21
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Solution
The fourth proportional to 1,352,405.19, 1,866,236.31 and 740,565.21 is: 1,021,934.62
Step by Step Solution
- Step 1: Write the proportion equation
1,352,405.19 : 1,866,236.31 = 740,565.21 : x - Step 2: Convert to fraction form
1,352,405.19/1,866,236.31 = 740,565.21/x - Step 3: Cross multiply
1,352,405.19x = 1,866,236.31 × 740,565.21 - Step 4: Simplify right side
1,352,405.19x = 1,382,069,684,824.78 - Step 5: Solve for x
x = 1,382,069,684,824.78/1,352,405.19 - Step 6: Final answer
x = 1,021,934.62
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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.