Finding the Fourth Proportional to 3,988,276.80, 5,982,415.20 and 1,464,916.20
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Solution
The fourth proportional to 3,988,276.80, 5,982,415.20 and 1,464,916.20 is: 2,197,374.30
Step by Step Solution
- Step 1: Write the proportion equation
3,988,276.80 : 5,982,415.20 = 1,464,916.20 : x - Step 2: Convert to fraction form
3,988,276.80/5,982,415.20 = 1,464,916.20/x - Step 3: Cross multiply
3,988,276.80x = 5,982,415.20 × 1,464,916.20 - Step 4: Simplify right side
3,988,276.80x = 8,763,736,941,606.24 - Step 5: Solve for x
x = 8,763,736,941,606.24/3,988,276.80 - Step 6: Final answer
x = 2,197,374.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.