Finding the Fourth Proportional to 636,660.80, 955,432.80 and 479,220.80
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Solution
The fourth proportional to 636,660.80, 955,432.80 and 479,220.80 is: 719,163.60
Step by Step Solution
- Step 1: Write the proportion equation
636,660.80 : 955,432.80 = 479,220.80 : x - Step 2: Convert to fraction form
636,660.80/955,432.80 = 479,220.80/x - Step 3: Cross multiply
636,660.80x = 955,432.80 × 479,220.80 - Step 4: Simplify right side
636,660.80x = 457,863,270,762.24 - Step 5: Solve for x
x = 457,863,270,762.24/636,660.80 - Step 6: Final answer
x = 719,163.60
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1.5x scale
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.