Finding the Fourth Proportional to 509,780.70, 764,476.65 and 154,676.70
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Solution
The fourth proportional to 509,780.70, 764,476.65 and 154,676.70 is: 231,956.07
Step by Step Solution
- Step 1: Write the proportion equation
509,780.70 : 764,476.65 = 154,676.70 : x - Step 2: Convert to fraction form
509,780.70/764,476.65 = 154,676.70/x - Step 3: Cross multiply
509,780.70x = 764,476.65 × 154,676.70 - Step 4: Simplify right side
509,780.70x = 118,246,725,449.06 - Step 5: Solve for x
x = 118,246,725,449.06/509,780.70 - Step 6: Final answer
x = 231,956.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.