Finding the Fourth Proportional to 479,988.72, 719,973.36 and 124,994.88
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Solution
The fourth proportional to 479,988.72, 719,973.36 and 124,994.88 is: 187,489.79
Step by Step Solution
- Step 1: Write the proportion equation
479,988.72 : 719,973.36 = 124,994.88 : x - Step 2: Convert to fraction form
479,988.72/719,973.36 = 124,994.88/x - Step 3: Cross multiply
479,988.72x = 719,973.36 × 124,994.88 - Step 4: Simplify right side
479,988.72x = 89,992,983,736.40 - Step 5: Solve for x
x = 89,992,983,736.40/479,988.72 - Step 6: Final answer
x = 187,489.79
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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.