Finding the Fourth Proportional to 640,115.03, 960,430.74 and 284,886.09
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Solution
The fourth proportional to 640,115.03, 960,430.74 and 284,886.09 is: 427,444.05
Step by Step Solution
- Step 1: Write the proportion equation
640,115.03 : 960,430.74 = 284,886.09 : x - Step 2: Convert to fraction form
640,115.03/960,430.74 = 284,886.09/x - Step 3: Cross multiply
640,115.03x = 960,430.74 × 284,886.09 - Step 4: Simplify right side
640,115.03x = 273,613,358,234.41 - Step 5: Solve for x
x = 273,613,358,234.41/640,115.03 - Step 6: Final answer
x = 427,444.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.