Finding the Fourth Proportional to 686,739.42, 947,711.91 and 380,828.70
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Solution
The fourth proportional to 686,739.42, 947,711.91 and 380,828.70 is: 525,549.99
Step by Step Solution
- Step 1: Write the proportion equation
686,739.42 : 947,711.91 = 380,828.70 : x - Step 2: Convert to fraction form
686,739.42/947,711.91 = 380,828.70/x - Step 3: Cross multiply
686,739.42x = 947,711.91 × 380,828.70 - Step 4: Simplify right side
686,739.42x = 360,915,894,659.82 - Step 5: Solve for x
x = 360,915,894,659.82/686,739.42 - Step 6: Final answer
x = 525,549.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.