Finding the Fourth Proportional to 717,335.52, 989,885.11 and 411,396.09
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Solution
The fourth proportional to 717,335.52, 989,885.11 and 411,396.09 is: 567,704.86
Step by Step Solution
- Step 1: Write the proportion equation
717,335.52 : 989,885.11 = 411,396.09 : x - Step 2: Convert to fraction form
717,335.52/989,885.11 = 411,396.09/x - Step 3: Cross multiply
717,335.52x = 989,885.11 × 411,396.09 - Step 4: Simplify right side
717,335.52x = 407,234,863,803.22 - Step 5: Solve for x
x = 407,234,863,803.22/717,335.52 - Step 6: Final answer
x = 567,704.86
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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.