Finding the Fourth Proportional to 1,615,686.06, 2,229,634.44 and 890,535.18
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Solution
The fourth proportional to 1,615,686.06, 2,229,634.44 and 890,535.18 is: 1,228,931.76
Step by Step Solution
- Step 1: Write the proportion equation
1,615,686.06 : 2,229,634.44 = 890,535.18 : x - Step 2: Convert to fraction form
1,615,686.06/2,229,634.44 = 890,535.18/x - Step 3: Cross multiply
1,615,686.06x = 2,229,634.44 × 890,535.18 - Step 4: Simplify right side
1,615,686.06x = 1,985,567,907,359.60 - Step 5: Solve for x
x = 1,985,567,907,359.60/1,615,686.06 - Step 6: Final answer
x = 1,228,931.76
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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.