Finding the Fourth Proportional to 420,473.10, 631,558.62 and 252,312.84
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Solution
The fourth proportional to 420,473.10, 631,558.62 and 252,312.84 is: 378,978.70
Step by Step Solution
- Step 1: Write the proportion equation
420,473.10 : 631,558.62 = 252,312.84 : x - Step 2: Convert to fraction form
420,473.10/631,558.62 = 252,312.84/x - Step 3: Cross multiply
420,473.10x = 631,558.62 × 252,312.84 - Step 4: Simplify right side
420,473.10x = 159,350,349,038.68 - Step 5: Solve for x
x = 159,350,349,038.68/420,473.10 - Step 6: Final answer
x = 378,978.70
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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.