Finding the Fourth Proportional to 430,192.08, 642,121.56 and 374,425.20
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Solution
The fourth proportional to 430,192.08, 642,121.56 and 374,425.20 is: 558,881.73
Step by Step Solution
- Step 1: Write the proportion equation
430,192.08 : 642,121.56 = 374,425.20 : x - Step 2: Convert to fraction form
430,192.08/642,121.56 = 374,425.20/x - Step 3: Cross multiply
430,192.08x = 642,121.56 × 374,425.20 - Step 4: Simplify right side
430,192.08x = 240,426,493,527.31 - Step 5: Solve for x
x = 240,426,493,527.31/430,192.08 - Step 6: Final answer
x = 558,881.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.