Finding the Fourth Proportional to 2,078,978, 2,868,989.68 and 1,125,122
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Solution
The fourth proportional to 2,078,978, 2,868,989.68 and 1,125,122 is: 1,552,668.38
Step by Step Solution
- Step 1: Write the proportion equation
2,078,978 : 2,868,989.68 = 1,125,122 : x - Step 2: Convert to fraction form
2,078,978/2,868,989.68 = 1,125,122/x - Step 3: Cross multiply
2,078,978x = 2,868,989.68 × 1,125,122 - Step 4: Simplify right side
2,078,978x = 3,227,963,406,740.96 - Step 5: Solve for x
x = 3,227,963,406,740.96/2,078,978 - Step 6: Final answer
x = 1,552,668.38
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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.