Finding the Fourth Proportional to 1,448,409.60, 1,999,779.84 and 1,108,270.08
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Solution
The fourth proportional to 1,448,409.60, 1,999,779.84 and 1,108,270.08 is: 1,530,158.43
Step by Step Solution
- Step 1: Write the proportion equation
1,448,409.60 : 1,999,779.84 = 1,108,270.08 : x - Step 2: Convert to fraction form
1,448,409.60/1,999,779.84 = 1,108,270.08/x - Step 3: Cross multiply
1,448,409.60x = 1,999,779.84 × 1,108,270.08 - Step 4: Simplify right side
1,448,409.60x = 2,216,296,163,259.19 - Step 5: Solve for x
x = 2,216,296,163,259.19/1,448,409.60 - Step 6: Final answer
x = 1,530,158.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.