Finding the Fourth Proportional to 1,118,521.26, 1,677,878.76 and 308,905.98
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Solution
The fourth proportional to 1,118,521.26, 1,677,878.76 and 308,905.98 is: 463,385.72
Step by Step Solution
- Step 1: Write the proportion equation
1,118,521.26 : 1,677,878.76 = 308,905.98 : x - Step 2: Convert to fraction form
1,118,521.26/1,677,878.76 = 308,905.98/x - Step 3: Cross multiply
1,118,521.26x = 1,677,878.76 × 308,905.98 - Step 4: Simplify right side
1,118,521.26x = 518,306,782,678.99 - Step 5: Solve for x
x = 518,306,782,678.99/1,118,521.26 - Step 6: Final answer
x = 463,385.72
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1.5x scale
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.