Finding the Fourth Proportional to 418,860.88, 578,146.86 and 246,878.80
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Solution
The fourth proportional to 418,860.88, 578,146.86 and 246,878.80 is: 340,762.79
Step by Step Solution
- Step 1: Write the proportion equation
418,860.88 : 578,146.86 = 246,878.80 : x - Step 2: Convert to fraction form
418,860.88/578,146.86 = 246,878.80/x - Step 3: Cross multiply
418,860.88x = 578,146.86 × 246,878.80 - Step 4: Simplify right side
418,860.88x = 142,732,203,020.57 - Step 5: Solve for x
x = 142,732,203,020.57/418,860.88 - Step 6: Final answer
x = 340,762.79
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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.