Finding the Fourth Proportional to 611,148.08, 843,381.42 and 339,219.20
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Solution
The fourth proportional to 611,148.08, 843,381.42 and 339,219.20 is: 468,120.87
Step by Step Solution
- Step 1: Write the proportion equation
611,148.08 : 843,381.42 = 339,219.20 : x - Step 2: Convert to fraction form
611,148.08/843,381.42 = 339,219.20/x - Step 3: Cross multiply
611,148.08x = 843,381.42 × 339,219.20 - Step 4: Simplify right side
611,148.08x = 286,091,170,587.26 - Step 5: Solve for x
x = 286,091,170,587.26/611,148.08 - Step 6: Final answer
x = 468,120.87
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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.