Finding the Fourth Proportional to 1,635,487.20, 2,455,855.20 and 1,105,358.40
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Solution
The fourth proportional to 1,635,487.20, 2,455,855.20 and 1,105,358.40 is: 1,659,811.32
Step by Step Solution
- Step 1: Write the proportion equation
1,635,487.20 : 2,455,855.20 = 1,105,358.40 : x - Step 2: Convert to fraction form
1,635,487.20/2,455,855.20 = 1,105,358.40/x - Step 3: Cross multiply
1,635,487.20x = 2,455,855.20 × 1,105,358.40 - Step 4: Simplify right side
1,635,487.20x = 2,714,600,174,503.68 - Step 5: Solve for x
x = 2,714,600,174,503.68/1,635,487.20 - Step 6: Final answer
x = 1,659,811.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.