Finding the Fourth Proportional to 652,129.29, 899,990.55 and 361,769.49
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Solution
The fourth proportional to 652,129.29, 899,990.55 and 361,769.49 is: 499,270.82
Step by Step Solution
- Step 1: Write the proportion equation
652,129.29 : 899,990.55 = 361,769.49 : x - Step 2: Convert to fraction form
652,129.29/899,990.55 = 361,769.49/x - Step 3: Cross multiply
652,129.29x = 899,990.55 × 361,769.49 - Step 4: Simplify right side
652,129.29x = 325,589,122,278.32 - Step 5: Solve for x
x = 325,589,122,278.32/652,129.29 - Step 6: Final answer
x = 499,270.82
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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.