Finding the Fourth Proportional to 743,724.24, 1,026,318.15 and 421,538.46
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Solution
The fourth proportional to 743,724.24, 1,026,318.15 and 421,538.46 is: 581,711.00
Step by Step Solution
- Step 1: Write the proportion equation
743,724.24 : 1,026,318.15 = 421,538.46 : x - Step 2: Convert to fraction form
743,724.24/1,026,318.15 = 421,538.46/x - Step 3: Cross multiply
743,724.24x = 1,026,318.15 × 421,538.46 - Step 4: Simplify right side
743,724.24x = 432,632,572,421.05 - Step 5: Solve for x
x = 432,632,572,421.05/743,724.24 - Step 6: Final answer
x = 581,711.00
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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.