Finding the Fourth Proportional to 390,750.75, 586,119.69 and 124,507.67
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Solution
The fourth proportional to 390,750.75, 586,119.69 and 124,507.67 is: 186,759.45
Step by Step Solution
- Step 1: Write the proportion equation
390,750.75 : 586,119.69 = 124,507.67 : x - Step 2: Convert to fraction form
390,750.75/586,119.69 = 124,507.67/x - Step 3: Cross multiply
390,750.75x = 586,119.69 × 124,507.67 - Step 4: Simplify right side
390,750.75x = 72,976,394,012.42 - Step 5: Solve for x
x = 72,976,394,012.42/390,750.75 - Step 6: Final answer
x = 186,759.45
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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.