Finding the Fourth Proportional to 509,734.13, 703,433.90 and 283,379.63
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Solution
The fourth proportional to 509,734.13, 703,433.90 and 283,379.63 is: 391,064.33
Step by Step Solution
- Step 1: Write the proportion equation
509,734.13 : 703,433.90 = 283,379.63 : x - Step 2: Convert to fraction form
509,734.13/703,433.90 = 283,379.63/x - Step 3: Cross multiply
509,734.13x = 703,433.90 × 283,379.63 - Step 4: Simplify right side
509,734.13x = 199,338,835,502.74 - Step 5: Solve for x
x = 199,338,835,502.74/509,734.13 - Step 6: Final answer
x = 391,064.33
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1.5x scale
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.