Finding the Fourth Proportional to 781,569.92, 1,078,769.26 and 442,235
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Solution
The fourth proportional to 781,569.92, 1,078,769.26 and 442,235 is: 610,399.03
Step by Step Solution
- Step 1: Write the proportion equation
781,569.92 : 1,078,769.26 = 442,235 : x - Step 2: Convert to fraction form
781,569.92/1,078,769.26 = 442,235/x - Step 3: Cross multiply
781,569.92x = 1,078,769.26 × 442,235 - Step 4: Simplify right side
781,569.92x = 477,069,523,696.10 - Step 5: Solve for x
x = 477,069,523,696.10/781,569.92 - Step 6: Final answer
x = 610,399.03
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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.