Finding the Fourth Proportional to 969,839.93, 1,338,420.63 and 540,120.06
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Solution
The fourth proportional to 969,839.93, 1,338,420.63 and 540,120.06 is: 745,388.81
Step by Step Solution
- Step 1: Write the proportion equation
969,839.93 : 1,338,420.63 = 540,120.06 : x - Step 2: Convert to fraction form
969,839.93/1,338,420.63 = 540,120.06/x - Step 3: Cross multiply
969,839.93x = 1,338,420.63 × 540,120.06 - Step 4: Simplify right side
969,839.93x = 722,907,834,503.10 - Step 5: Solve for x
x = 722,907,834,503.10/969,839.93 - Step 6: Final answer
x = 745,388.81
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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.