Finding the Fourth Proportional to 413,106.54, 618,869.70 and 279,330.18
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Solution
The fourth proportional to 413,106.54, 618,869.70 and 279,330.18 is: 418,461.02
Step by Step Solution
- Step 1: Write the proportion equation
413,106.54 : 618,869.70 = 279,330.18 : x - Step 2: Convert to fraction form
413,106.54/618,869.70 = 279,330.18/x - Step 3: Cross multiply
413,106.54x = 618,869.70 × 279,330.18 - Step 4: Simplify right side
413,106.54x = 172,868,984,697.55 - Step 5: Solve for x
x = 172,868,984,697.55/413,106.54 - Step 6: Final answer
x = 418,461.02
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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.