Finding the Fourth Proportional to 885,703.40, 1,328,555.10 and 531,117.80
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Solution
The fourth proportional to 885,703.40, 1,328,555.10 and 531,117.80 is: 796,676.70
Step by Step Solution
- Step 1: Write the proportion equation
885,703.40 : 1,328,555.10 = 531,117.80 : x - Step 2: Convert to fraction form
885,703.40/1,328,555.10 = 531,117.80/x - Step 3: Cross multiply
885,703.40x = 1,328,555.10 × 531,117.80 - Step 4: Simplify right side
885,703.40x = 705,619,261,890.78 - Step 5: Solve for x
x = 705,619,261,890.78/885,703.40 - Step 6: Final answer
x = 796,676.70
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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.