Finding the Fourth Proportional to 515,932.61, 712,052.69 and 311,984.99
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Solution
The fourth proportional to 515,932.61, 712,052.69 and 311,984.99 is: 430,579.00
Step by Step Solution
- Step 1: Write the proportion equation
515,932.61 : 712,052.69 = 311,984.99 : x - Step 2: Convert to fraction form
515,932.61/712,052.69 = 311,984.99/x - Step 3: Cross multiply
515,932.61x = 712,052.69 × 311,984.99 - Step 4: Simplify right side
515,932.61x = 222,149,746,248.94 - Step 5: Solve for x
x = 222,149,746,248.94/515,932.61 - Step 6: Final answer
x = 430,579.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.