Finding the Fourth Proportional to 452,913.68, 679,369.72 and 120,489.68
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Solution
The fourth proportional to 452,913.68, 679,369.72 and 120,489.68 is: 180,734.31
Step by Step Solution
- Step 1: Write the proportion equation
452,913.68 : 679,369.72 = 120,489.68 : x - Step 2: Convert to fraction form
452,913.68/679,369.72 = 120,489.68/x - Step 3: Cross multiply
452,913.68x = 679,369.72 × 120,489.68 - Step 4: Simplify right side
452,913.68x = 81,857,040,164.49 - Step 5: Solve for x
x = 81,857,040,164.49/452,913.68 - Step 6: Final answer
x = 180,734.31
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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.