Finding the Fourth Proportional to 452,763.68, 679,144.80 and 120,339.68
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Solution
The fourth proportional to 452,763.68, 679,144.80 and 120,339.68 is: 180,509.33
Step by Step Solution
- Step 1: Write the proportion equation
452,763.68 : 679,144.80 = 120,339.68 : x - Step 2: Convert to fraction form
452,763.68/679,144.80 = 120,339.68/x - Step 3: Cross multiply
452,763.68x = 679,144.80 × 120,339.68 - Step 4: Simplify right side
452,763.68x = 81,728,067,905.66 - Step 5: Solve for x
x = 81,728,067,905.66/452,763.68 - Step 6: Final answer
x = 180,509.33
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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.