Finding the Fourth Proportional to 899,432.91, 1,241,220.66 and 491,534.94
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Solution
The fourth proportional to 899,432.91, 1,241,220.66 and 491,534.94 is: 678,319.99
Step by Step Solution
- Step 1: Write the proportion equation
899,432.91 : 1,241,220.66 = 491,534.94 : x - Step 2: Convert to fraction form
899,432.91/1,241,220.66 = 491,534.94/x - Step 3: Cross multiply
899,432.91x = 1,241,220.66 × 491,534.94 - Step 4: Simplify right side
899,432.91x = 610,103,322,639.86 - Step 5: Solve for x
x = 610,103,322,639.86/899,432.91 - Step 6: Final answer
x = 678,319.99
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1.5x scale
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.