Finding the Fourth Proportional to 640,656.24, 884,037.96 and 354,130.08
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Solution
The fourth proportional to 640,656.24, 884,037.96 and 354,130.08 is: 488,662.12
Step by Step Solution
- Step 1: Write the proportion equation
640,656.24 : 884,037.96 = 354,130.08 : x - Step 2: Convert to fraction form
640,656.24/884,037.96 = 354,130.08/x - Step 3: Cross multiply
640,656.24x = 884,037.96 × 354,130.08 - Step 4: Simplify right side
640,656.24x = 313,064,433,497.84 - Step 5: Solve for x
x = 313,064,433,497.84/640,656.24 - Step 6: Final answer
x = 488,662.12
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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.