Finding the Fourth Proportional to 711,849.44, 982,257.36 and 409,985.12
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Solution
The fourth proportional to 711,849.44, 982,257.36 and 409,985.12 is: 565,724.83
Step by Step Solution
- Step 1: Write the proportion equation
711,849.44 : 982,257.36 = 409,985.12 : x - Step 2: Convert to fraction form
711,849.44/982,257.36 = 409,985.12/x - Step 3: Cross multiply
711,849.44x = 982,257.36 × 409,985.12 - Step 4: Simplify right side
711,849.44x = 402,710,901,610.48 - Step 5: Solve for x
x = 402,710,901,610.48/711,849.44 - Step 6: Final answer
x = 565,724.83
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1.5x scale
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.