Finding the Fourth Proportional to 681,079.20, 1,021,618.80 and 606,283.80
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Solution
The fourth proportional to 681,079.20, 1,021,618.80 and 606,283.80 is: 909,425.70
Step by Step Solution
- Step 1: Write the proportion equation
681,079.20 : 1,021,618.80 = 606,283.80 : x - Step 2: Convert to fraction form
681,079.20/1,021,618.80 = 606,283.80/x - Step 3: Cross multiply
681,079.20x = 1,021,618.80 × 606,283.80 - Step 4: Simplify right side
681,079.20x = 619,390,928,215.44 - Step 5: Solve for x
x = 619,390,928,215.44/681,079.20 - Step 6: Final answer
x = 909,425.70
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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.