Finding the Fourth Proportional to 645,462.04, 890,590.62 and 373,523.08
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Solution
The fourth proportional to 645,462.04, 890,590.62 and 373,523.08 is: 515,376.79
Step by Step Solution
- Step 1: Write the proportion equation
645,462.04 : 890,590.62 = 373,523.08 : x - Step 2: Convert to fraction form
645,462.04/890,590.62 = 373,523.08/x - Step 3: Cross multiply
645,462.04x = 890,590.62 × 373,523.08 - Step 4: Simplify right side
645,462.04x = 332,656,151,401.51 - Step 5: Solve for x
x = 332,656,151,401.51/645,462.04 - Step 6: Final answer
x = 515,376.79
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1.5x scale
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.