Finding the Fourth Proportional to 645,131.08, 890,311.20 and 358,655.92
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Solution
The fourth proportional to 645,131.08, 890,311.20 and 358,655.92 is: 494,962.02
Step by Step Solution
- Step 1: Write the proportion equation
645,131.08 : 890,311.20 = 358,655.92 : x - Step 2: Convert to fraction form
645,131.08/890,311.20 = 358,655.92/x - Step 3: Cross multiply
645,131.08x = 890,311.20 × 358,655.92 - Step 4: Simplify right side
645,131.08x = 319,315,382,522.30 - Step 5: Solve for x
x = 319,315,382,522.30/645,131.08 - Step 6: Final answer
x = 494,962.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.