Finding the Fourth Proportional to 678,582.72, 1,017,909.11 and 173,148.12
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Solution
The fourth proportional to 678,582.72, 1,017,909.11 and 173,148.12 is: 259,731.12
Step by Step Solution
- Step 1: Write the proportion equation
678,582.72 : 1,017,909.11 = 173,148.12 : x - Step 2: Convert to fraction form
678,582.72/1,017,909.11 = 173,148.12/x - Step 3: Cross multiply
678,582.72x = 1,017,909.11 × 173,148.12 - Step 4: Simplify right side
678,582.72x = 176,249,049,160.24 - Step 5: Solve for x
x = 176,249,049,160.24/678,582.72 - Step 6: Final answer
x = 259,731.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.