Finding the Fourth Proportional to 899,410.74, 1,241,190.06 and 491,518.84
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Solution
The fourth proportional to 899,410.74, 1,241,190.06 and 491,518.84 is: 678,297.77
Step by Step Solution
- Step 1: Write the proportion equation
899,410.74 : 1,241,190.06 = 491,518.84 : x - Step 2: Convert to fraction form
899,410.74/1,241,190.06 = 491,518.84/x - Step 3: Cross multiply
899,410.74x = 1,241,190.06 × 491,518.84 - Step 4: Simplify right side
899,410.74x = 610,068,298,510.73 - Step 5: Solve for x
x = 610,068,298,510.73/899,410.74 - Step 6: Final answer
x = 678,297.77
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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.