Finding the Fourth Proportional to 735,165.60, 1,102,780.80 and 415,312.80
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Solution
The fourth proportional to 735,165.60, 1,102,780.80 and 415,312.80 is: 622,987.50
Step by Step Solution
- Step 1: Write the proportion equation
735,165.60 : 1,102,780.80 = 415,312.80 : x - Step 2: Convert to fraction form
735,165.60/1,102,780.80 = 415,312.80/x - Step 3: Cross multiply
735,165.60x = 1,102,780.80 × 415,312.80 - Step 4: Simplify right side
735,165.60x = 457,998,981,834.24 - Step 5: Solve for x
x = 457,998,981,834.24/735,165.60 - Step 6: Final answer
x = 622,987.50
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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.