Finding the Fourth Proportional to 1,439,006.54, 2,157,787.76 and 479,124.05
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Solution
The fourth proportional to 1,439,006.54, 2,157,787.76 and 479,124.05 is: 718,445.66
Step by Step Solution
- Step 1: Write the proportion equation
1,439,006.54 : 2,157,787.76 = 479,124.05 : x - Step 2: Convert to fraction form
1,439,006.54/2,157,787.76 = 479,124.05/x - Step 3: Cross multiply
1,439,006.54x = 2,157,787.76 × 479,124.05 - Step 4: Simplify right side
1,439,006.54x = 1,033,847,997,427.07 - Step 5: Solve for x
x = 1,033,847,997,427.07/1,439,006.54 - Step 6: Final answer
x = 718,445.66
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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.