Finding the Fourth Proportional to 498,951.68, 688,357.86 and 307,632.92
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Solution
The fourth proportional to 498,951.68, 688,357.86 and 307,632.92 is: 424,412.92
Step by Step Solution
- Step 1: Write the proportion equation
498,951.68 : 688,357.86 = 307,632.92 : x - Step 2: Convert to fraction form
498,951.68/688,357.86 = 307,632.92/x - Step 3: Cross multiply
498,951.68x = 688,357.86 × 307,632.92 - Step 4: Simplify right side
498,951.68x = 211,761,538,476.75 - Step 5: Solve for x
x = 211,761,538,476.75/498,951.68 - Step 6: Final answer
x = 424,412.92
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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.