Finding the Fourth Proportional to 418,967.18, 624,966.04 and 378,609.74
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Solution
The fourth proportional to 418,967.18, 624,966.04 and 378,609.74 is: 564,765.55
Step by Step Solution
- Step 1: Write the proportion equation
418,967.18 : 624,966.04 = 378,609.74 : x - Step 2: Convert to fraction form
418,967.18/624,966.04 = 378,609.74/x - Step 3: Cross multiply
418,967.18x = 624,966.04 × 378,609.74 - Step 4: Simplify right side
418,967.18x = 236,618,225,841.88 - Step 5: Solve for x
x = 236,618,225,841.88/418,967.18 - Step 6: Final answer
x = 564,765.55
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.