Finding the Fourth Proportional to 781,804.28, 1,078,891.98 and 424,108.28
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Solution
The fourth proportional to 781,804.28, 1,078,891.98 and 424,108.28 is: 585,270.55
Step by Step Solution
- Step 1: Write the proportion equation
781,804.28 : 1,078,891.98 = 424,108.28 : x - Step 2: Convert to fraction form
781,804.28/1,078,891.98 = 424,108.28/x - Step 3: Cross multiply
781,804.28x = 1,078,891.98 × 424,108.28 - Step 4: Simplify right side
781,804.28x = 457,567,021,943.59 - Step 5: Solve for x
x = 457,567,021,943.59/781,804.28 - Step 6: Final answer
x = 585,270.55
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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.