Finding the Fourth Proportional to 545,732.99, 752,708.09 and 400,489.71
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Solution
The fourth proportional to 545,732.99, 752,708.09 and 400,489.71 is: 552,379.73
Step by Step Solution
- Step 1: Write the proportion equation
545,732.99 : 752,708.09 = 400,489.71 : x - Step 2: Convert to fraction form
545,732.99/752,708.09 = 400,489.71/x - Step 3: Cross multiply
545,732.99x = 752,708.09 × 400,489.71 - Step 4: Simplify right side
545,732.99x = 301,451,841,646.09 - Step 5: Solve for x
x = 301,451,841,646.09/545,732.99 - Step 6: Final answer
x = 552,379.73
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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.