Finding the Fourth Proportional to 740,670.88, 1,022,188.76 and 418,440.12
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Solution
The fourth proportional to 740,670.88, 1,022,188.76 and 418,440.12 is: 577,482.93
Step by Step Solution
- Step 1: Write the proportion equation
740,670.88 : 1,022,188.76 = 418,440.12 : x - Step 2: Convert to fraction form
740,670.88/1,022,188.76 = 418,440.12/x - Step 3: Cross multiply
740,670.88x = 1,022,188.76 × 418,440.12 - Step 4: Simplify right side
740,670.88x = 427,724,787,397.05 - Step 5: Solve for x
x = 427,724,787,397.05/740,670.88 - Step 6: Final answer
x = 577,482.93
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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.