Finding the Fourth Proportional to 714,430.96, 985,927.44 and 392,171.02
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Solution
The fourth proportional to 714,430.96, 985,927.44 and 392,171.02 is: 541,202.99
Step by Step Solution
- Step 1: Write the proportion equation
714,430.96 : 985,927.44 = 392,171.02 : x - Step 2: Convert to fraction form
714,430.96/985,927.44 = 392,171.02/x - Step 3: Cross multiply
714,430.96x = 985,927.44 × 392,171.02 - Step 4: Simplify right side
714,430.96x = 386,652,169,790.79 - Step 5: Solve for x
x = 386,652,169,790.79/714,430.96 - Step 6: Final answer
x = 541,202.99
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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.