Finding the Fourth Proportional to 947,349.95, 1,421,120.57 and 307,626.93
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Solution
The fourth proportional to 947,349.95, 1,421,120.57 and 307,626.93 is: 461,471.45
Step by Step Solution
- Step 1: Write the proportion equation
947,349.95 : 1,421,120.57 = 307,626.93 : x - Step 2: Convert to fraction form
947,349.95/1,421,120.57 = 307,626.93/x - Step 3: Cross multiply
947,349.95x = 1,421,120.57 × 307,626.93 - Step 4: Simplify right side
947,349.95x = 437,174,956,570.82 - Step 5: Solve for x
x = 437,174,956,570.82/947,349.95 - Step 6: Final answer
x = 461,471.45
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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.