Finding the Fourth Proportional to 528,020.64, 791,846.64 and 212,395.68
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Solution
The fourth proportional to 528,020.64, 791,846.64 and 212,395.68 is: 318,519.38
Step by Step Solution
- Step 1: Write the proportion equation
528,020.64 : 791,846.64 = 212,395.68 : x - Step 2: Convert to fraction form
528,020.64/791,846.64 = 212,395.68/x - Step 3: Cross multiply
528,020.64x = 791,846.64 × 212,395.68 - Step 4: Simplify right side
528,020.64x = 168,184,805,558.52 - Step 5: Solve for x
x = 168,184,805,558.52/528,020.64 - Step 6: Final answer
x = 318,519.38
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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.