Finding the Fourth Proportional to 885,814.97, 1,328,742.95 and 317,235.06
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Solution
The fourth proportional to 885,814.97, 1,328,742.95 and 317,235.06 is: 475,859.93
Step by Step Solution
- Step 1: Write the proportion equation
885,814.97 : 1,328,742.95 = 317,235.06 : x - Step 2: Convert to fraction form
885,814.97/1,328,742.95 = 317,235.06/x - Step 3: Cross multiply
885,814.97x = 1,328,742.95 × 317,235.06 - Step 4: Simplify right side
885,814.97x = 421,523,847,881.65 - Step 5: Solve for x
x = 421,523,847,881.65/885,814.97 - Step 6: Final answer
x = 475,859.93
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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.