Finding the Fourth Proportional to 753,103.41, 1,039,289.45 and 413,574.09
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Solution
The fourth proportional to 753,103.41, 1,039,289.45 and 413,574.09 is: 570,735.95
Step by Step Solution
- Step 1: Write the proportion equation
753,103.41 : 1,039,289.45 = 413,574.09 : x - Step 2: Convert to fraction form
753,103.41/1,039,289.45 = 413,574.09/x - Step 3: Cross multiply
753,103.41x = 1,039,289.45 × 413,574.09 - Step 4: Simplify right side
753,103.41x = 429,823,186,462.48 - Step 5: Solve for x
x = 429,823,186,462.48/753,103.41 - Step 6: Final answer
x = 570,735.95
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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.