Finding the Fourth Proportional to 3,158,259.20, 4,358,343.36 and 1,781,605.84
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Solution
The fourth proportional to 3,158,259.20, 4,358,343.36 and 1,781,605.84 is: 2,458,585.41
Step by Step Solution
- Step 1: Write the proportion equation
3,158,259.20 : 4,358,343.36 = 1,781,605.84 : x - Step 2: Convert to fraction form
3,158,259.20/4,358,343.36 = 1,781,605.84/x - Step 3: Cross multiply
3,158,259.20x = 4,358,343.36 × 1,781,605.84 - Step 4: Simplify right side
3,158,259.20x = 7,764,849,982,901.22 - Step 5: Solve for x
x = 7,764,849,982,901.22/3,158,259.20 - Step 6: Final answer
x = 2,458,585.41
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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.