Finding the Fourth Proportional to 401,718.09, 553,306.77 and 299,415.70
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Solution
The fourth proportional to 401,718.09, 553,306.77 and 299,415.70 is: 412,400.48
Step by Step Solution
- Step 1: Write the proportion equation
401,718.09 : 553,306.77 = 299,415.70 : x - Step 2: Convert to fraction form
401,718.09/553,306.77 = 299,415.70/x - Step 3: Cross multiply
401,718.09x = 553,306.77 × 299,415.70 - Step 4: Simplify right side
401,718.09x = 165,668,732,471.02 - Step 5: Solve for x
x = 165,668,732,471.02/401,718.09 - Step 6: Final answer
x = 412,400.48
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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.