Finding the Fourth Proportional to 390,652.43, 586,037.12 and 141,392.75
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Solution
The fourth proportional to 390,652.43, 586,037.12 and 141,392.75 is: 212,110.28
Step by Step Solution
- Step 1: Write the proportion equation
390,652.43 : 586,037.12 = 141,392.75 : x - Step 2: Convert to fraction form
390,652.43/586,037.12 = 141,392.75/x - Step 3: Cross multiply
390,652.43x = 586,037.12 × 141,392.75 - Step 4: Simplify right side
390,652.43x = 82,861,396,361.73 - Step 5: Solve for x
x = 82,861,396,361.73/390,652.43 - Step 6: Final answer
x = 212,110.28
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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.