Finding the Fourth Proportional to 554,624.70, 765,364.46 and 312,904.05
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Solution
The fourth proportional to 554,624.70, 765,364.46 and 312,904.05 is: 431,797.64
Step by Step Solution
- Step 1: Write the proportion equation
554,624.70 : 765,364.46 = 312,904.05 : x - Step 2: Convert to fraction form
554,624.70/765,364.46 = 312,904.05/x - Step 3: Cross multiply
554,624.70x = 765,364.46 × 312,904.05 - Step 4: Simplify right side
554,624.70x = 239,485,637,695.54 - Step 5: Solve for x
x = 239,485,637,695.54/554,624.70 - Step 6: Final answer
x = 431,797.64
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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.