Finding the Fourth Proportional to 1,121,937.76, 1,681,660.05 and 854,817.58
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Solution
The fourth proportional to 1,121,937.76, 1,681,660.05 and 854,817.58 is: 1,281,276.58
Step by Step Solution
- Step 1: Write the proportion equation
1,121,937.76 : 1,681,660.05 = 854,817.58 : x - Step 2: Convert to fraction form
1,121,937.76/1,681,660.05 = 854,817.58/x - Step 3: Cross multiply
1,121,937.76x = 1,681,660.05 × 854,817.58 - Step 4: Simplify right side
1,121,937.76x = 1,437,512,574,323.68 - Step 5: Solve for x
x = 1,437,512,574,323.68/1,121,937.76 - Step 6: Final answer
x = 1,281,276.58
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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.