Finding the Fourth Proportional to 390,829.74, 586,287.09 and 124,527.66
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Solution
The fourth proportional to 390,829.74, 586,287.09 and 124,527.66 is: 186,805.03
Step by Step Solution
- Step 1: Write the proportion equation
390,829.74 : 586,287.09 = 124,527.66 : x - Step 2: Convert to fraction form
390,829.74/586,287.09 = 124,527.66/x - Step 3: Cross multiply
390,829.74x = 586,287.09 × 124,527.66 - Step 4: Simplify right side
390,829.74x = 73,008,959,405.91 - Step 5: Solve for x
x = 73,008,959,405.91/390,829.74 - Step 6: Final answer
x = 186,805.03
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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.