Finding the Fourth Proportional to 553,645.88, 763,812.61 and 349,620.65
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Solution
The fourth proportional to 553,645.88, 763,812.61 and 349,620.65 is: 482,338.38
Step by Step Solution
- Step 1: Write the proportion equation
553,645.88 : 763,812.61 = 349,620.65 : x - Step 2: Convert to fraction form
553,645.88/763,812.61 = 349,620.65/x - Step 3: Cross multiply
553,645.88x = 763,812.61 × 349,620.65 - Step 4: Simplify right side
553,645.88x = 267,044,656,493.28 - Step 5: Solve for x
x = 267,044,656,493.28/553,645.88 - Step 6: Final answer
x = 482,338.38
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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.