Finding the Fourth Proportional to 640,062.08, 883,318.56 and 353,579.84
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Solution
The fourth proportional to 640,062.08, 883,318.56 and 353,579.84 is: 487,958.35
Step by Step Solution
- Step 1: Write the proportion equation
640,062.08 : 883,318.56 = 353,579.84 : x - Step 2: Convert to fraction form
640,062.08/883,318.56 = 353,579.84/x - Step 3: Cross multiply
640,062.08x = 883,318.56 × 353,579.84 - Step 4: Simplify right side
640,062.08x = 312,323,635,113.83 - Step 5: Solve for x
x = 312,323,635,113.83/640,062.08 - Step 6: Final answer
x = 487,958.35
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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.