Finding the Fourth Proportional to 525,679.14, 788,518.62 and 126,319.91
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Solution
The fourth proportional to 525,679.14, 788,518.62 and 126,319.91 is: 189,479.84
Step by Step Solution
- Step 1: Write the proportion equation
525,679.14 : 788,518.62 = 126,319.91 : x - Step 2: Convert to fraction form
525,679.14/788,518.62 = 126,319.91/x - Step 3: Cross multiply
525,679.14x = 788,518.62 × 126,319.91 - Step 4: Simplify right side
525,679.14x = 99,605,597,169.13 - Step 5: Solve for x
x = 99,605,597,169.13/525,679.14 - Step 6: Final answer
x = 189,479.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.