Finding the Fourth Proportional to 528,013.64, 791,836.14 and 212,388.68
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Solution
The fourth proportional to 528,013.64, 791,836.14 and 212,388.68 is: 318,508.88
Step by Step Solution
- Step 1: Write the proportion equation
528,013.64 : 791,836.14 = 212,388.68 : x - Step 2: Convert to fraction form
528,013.64/791,836.14 = 212,388.68/x - Step 3: Cross multiply
528,013.64x = 791,836.14 × 212,388.68 - Step 4: Simplify right side
528,013.64x = 168,177,032,550.90 - Step 5: Solve for x
x = 168,177,032,550.90/528,013.64 - Step 6: Final answer
x = 318,508.88
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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.