Finding the Fourth Proportional to 645,555.08, 890,794.86 and 373,570.04
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Solution
The fourth proportional to 645,555.08, 890,794.86 and 373,570.04 is: 515,485.48
Step by Step Solution
- Step 1: Write the proportion equation
645,555.08 : 890,794.86 = 373,570.04 : x - Step 2: Convert to fraction form
645,555.08/890,794.86 = 373,570.04/x - Step 3: Cross multiply
645,555.08x = 890,794.86 × 373,570.04 - Step 4: Simplify right side
645,555.08x = 332,774,271,481.99 - Step 5: Solve for x
x = 332,774,271,481.99/645,555.08 - Step 6: Final answer
x = 515,485.48
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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.