Finding the Fourth Proportional to 687,468.08, 1,031,202.12 and 214,191.68
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Solution
The fourth proportional to 687,468.08, 1,031,202.12 and 214,191.68 is: 321,287.52
Step by Step Solution
- Step 1: Write the proportion equation
687,468.08 : 1,031,202.12 = 214,191.68 : x - Step 2: Convert to fraction form
687,468.08/1,031,202.12 = 214,191.68/x - Step 3: Cross multiply
687,468.08x = 1,031,202.12 × 214,191.68 - Step 4: Simplify right side
687,468.08x = 220,874,914,502.36 - Step 5: Solve for x
x = 220,874,914,502.36/687,468.08 - Step 6: Final answer
x = 321,287.52
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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.