Finding the Fourth Proportional to 2,871,915.78, 3,963,243.80 and 1,582,756.18
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Solution
The fourth proportional to 2,871,915.78, 3,963,243.80 and 1,582,756.18 is: 2,184,203.54
Step by Step Solution
- Step 1: Write the proportion equation
2,871,915.78 : 3,963,243.80 = 1,582,756.18 : x - Step 2: Convert to fraction form
2,871,915.78/3,963,243.80 = 1,582,756.18/x - Step 3: Cross multiply
2,871,915.78x = 3,963,243.80 × 1,582,756.18 - Step 4: Simplify right side
2,871,915.78x = 6,272,848,617,296.68 - Step 5: Solve for x
x = 6,272,848,617,296.68/2,871,915.78 - Step 6: Final answer
x = 2,184,203.54
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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.