Finding the Fourth Proportional to 615,512.36, 849,449.76 and 343,633.70
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Solution
The fourth proportional to 615,512.36, 849,449.76 and 343,633.70 is: 474,238.35
Step by Step Solution
- Step 1: Write the proportion equation
615,512.36 : 849,449.76 = 343,633.70 : x - Step 2: Convert to fraction form
615,512.36/849,449.76 = 343,633.70/x - Step 3: Cross multiply
615,512.36x = 849,449.76 × 343,633.70 - Step 4: Simplify right side
615,512.36x = 291,899,563,992.91 - Step 5: Solve for x
x = 291,899,563,992.91/615,512.36 - Step 6: Final answer
x = 474,238.35
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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.