Finding the Fourth Proportional to 613,688.16, 920,753.04 and 214,387.68
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Solution
The fourth proportional to 613,688.16, 920,753.04 and 214,387.68 is: 321,658.65
Step by Step Solution
- Step 1: Write the proportion equation
613,688.16 : 920,753.04 = 214,387.68 : x - Step 2: Convert to fraction form
613,688.16/920,753.04 = 214,387.68/x - Step 3: Cross multiply
613,688.16x = 920,753.04 × 214,387.68 - Step 4: Simplify right side
613,688.16x = 197,398,108,098.55 - Step 5: Solve for x
x = 197,398,108,098.55/613,688.16 - Step 6: Final answer
x = 321,658.65
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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.