Finding the Fourth Proportional to 554,011.66, 764,490.14 and 312,353.62
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Solution
The fourth proportional to 554,011.66, 764,490.14 and 312,353.62 is: 431,022.08
Step by Step Solution
- Step 1: Write the proportion equation
554,011.66 : 764,490.14 = 312,353.62 : x - Step 2: Convert to fraction form
554,011.66/764,490.14 = 312,353.62/x - Step 3: Cross multiply
554,011.66x = 764,490.14 × 312,353.62 - Step 4: Simplify right side
554,011.66x = 238,791,257,299.09 - Step 5: Solve for x
x = 238,791,257,299.09/554,011.66 - Step 6: Final answer
x = 431,022.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.