Finding the Fourth Proportional to 717,751.41, 990,492.08 and 395,454.03
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Solution
The fourth proportional to 717,751.41, 990,492.08 and 395,454.03 is: 545,723.88
Step by Step Solution
- Step 1: Write the proportion equation
717,751.41 : 990,492.08 = 395,454.03 : x - Step 2: Convert to fraction form
717,751.41/990,492.08 = 395,454.03/x - Step 3: Cross multiply
717,751.41x = 990,492.08 × 395,454.03 - Step 4: Simplify right side
717,751.41x = 391,694,082,741.81 - Step 5: Solve for x
x = 391,694,082,741.81/717,751.41 - Step 6: Final answer
x = 545,723.88
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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.