Finding the Fourth Proportional to 448,741.79, 619,363.52 and 285,365.18
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Solution
The fourth proportional to 448,741.79, 619,363.52 and 285,365.18 is: 393,867.45
Step by Step Solution
- Step 1: Write the proportion equation
448,741.79 : 619,363.52 = 285,365.18 : x - Step 2: Convert to fraction form
448,741.79/619,363.52 = 285,365.18/x - Step 3: Cross multiply
448,741.79x = 619,363.52 × 285,365.18 - Step 4: Simplify right side
448,741.79x = 176,744,782,370.23 - Step 5: Solve for x
x = 176,744,782,370.23/448,741.79 - Step 6: Final answer
x = 393,867.45
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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.