Finding the Fourth Proportional to 587,752.99, 811,187.79 and 358,443.31
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Solution
The fourth proportional to 587,752.99, 811,187.79 and 358,443.31 is: 494,705.84
Step by Step Solution
- Step 1: Write the proportion equation
587,752.99 : 811,187.79 = 358,443.31 : x - Step 2: Convert to fraction form
587,752.99/811,187.79 = 358,443.31/x - Step 3: Cross multiply
587,752.99x = 811,187.79 × 358,443.31 - Step 4: Simplify right side
587,752.99x = 290,764,836,479.19 - Step 5: Solve for x
x = 290,764,836,479.19/587,752.99 - Step 6: Final answer
x = 494,705.84
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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.