Finding the Fourth Proportional to 418,897.16, 623,909.10 and 416,855.96
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Solution
The fourth proportional to 418,897.16, 623,909.10 and 416,855.96 is: 620,868.92
Step by Step Solution
- Step 1: Write the proportion equation
418,897.16 : 623,909.10 = 416,855.96 : x - Step 2: Convert to fraction form
418,897.16/623,909.10 = 416,855.96/x - Step 3: Cross multiply
418,897.16x = 623,909.10 × 416,855.96 - Step 4: Simplify right side
418,897.16x = 260,080,226,833.24 - Step 5: Solve for x
x = 260,080,226,833.24/418,897.16 - Step 6: Final answer
x = 620,868.92
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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.