Finding the Fourth Proportional to 808,217.70, 1,212,326.55 and 493,289.70
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Solution
The fourth proportional to 808,217.70, 1,212,326.55 and 493,289.70 is: 739,934.55
Step by Step Solution
- Step 1: Write the proportion equation
808,217.70 : 1,212,326.55 = 493,289.70 : x - Step 2: Convert to fraction form
808,217.70/1,212,326.55 = 493,289.70/x - Step 3: Cross multiply
808,217.70x = 1,212,326.55 × 493,289.70 - Step 4: Simplify right side
808,217.70x = 598,028,200,151.54 - Step 5: Solve for x
x = 598,028,200,151.54/808,217.70 - Step 6: Final answer
x = 739,934.55
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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.