Finding the Fourth Proportional to 528,021.64, 791,848.14 and 212,396.68
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Solution
The fourth proportional to 528,021.64, 791,848.14 and 212,396.68 is: 318,520.88
Step by Step Solution
- Step 1: Write the proportion equation
528,021.64 : 791,848.14 = 212,396.68 : x - Step 2: Convert to fraction form
528,021.64/791,848.14 = 212,396.68/x - Step 3: Cross multiply
528,021.64x = 791,848.14 × 212,396.68 - Step 4: Simplify right side
528,021.64x = 168,185,916,000.18 - Step 5: Solve for x
x = 168,185,916,000.18/528,021.64 - Step 6: Final answer
x = 318,520.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.