Finding the Fourth Proportional to 516,631.36, 774,942.08 and 306,117.76
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Solution
The fourth proportional to 516,631.36, 774,942.08 and 306,117.76 is: 459,173.70
Step by Step Solution
- Step 1: Write the proportion equation
516,631.36 : 774,942.08 = 306,117.76 : x - Step 2: Convert to fraction form
516,631.36/774,942.08 = 306,117.76/x - Step 3: Cross multiply
516,631.36x = 774,942.08 × 306,117.76 - Step 4: Simplify right side
516,631.36x = 237,223,533,659.34 - Step 5: Solve for x
x = 237,223,533,659.34/516,631.36 - Step 6: Final answer
x = 459,173.70
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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.