Finding the Fourth Proportional to 440,642.28, 608,089.98 and 239,438.28
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Solution
The fourth proportional to 440,642.28, 608,089.98 and 239,438.28 is: 330,426.80
Step by Step Solution
- Step 1: Write the proportion equation
440,642.28 : 608,089.98 = 239,438.28 : x - Step 2: Convert to fraction form
440,642.28/608,089.98 = 239,438.28/x - Step 3: Cross multiply
440,642.28x = 608,089.98 × 239,438.28 - Step 4: Simplify right side
440,642.28x = 145,600,018,896.43 - Step 5: Solve for x
x = 145,600,018,896.43/440,642.28 - Step 6: Final answer
x = 330,426.80
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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.