Finding the Fourth Proportional to 681,479.84, 939,804.31 and 538,581.26
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Solution
The fourth proportional to 681,479.84, 939,804.31 and 538,581.26 is: 742,738.02
Step by Step Solution
- Step 1: Write the proportion equation
681,479.84 : 939,804.31 = 538,581.26 : x - Step 2: Convert to fraction form
681,479.84/939,804.31 = 538,581.26/x - Step 3: Cross multiply
681,479.84x = 939,804.31 × 538,581.26 - Step 4: Simplify right side
681,479.84x = 506,160,989,433.23 - Step 5: Solve for x
x = 506,160,989,433.23/681,479.84 - Step 6: Final answer
x = 742,738.02
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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.