Finding the Fourth Proportional to 1,372,005.56, 1,893,367.68 and 768,393.56
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Solution
The fourth proportional to 1,372,005.56, 1,893,367.68 and 768,393.56 is: 1,060,383.12
Step by Step Solution
- Step 1: Write the proportion equation
1,372,005.56 : 1,893,367.68 = 768,393.56 : x - Step 2: Convert to fraction form
1,372,005.56/1,893,367.68 = 768,393.56/x - Step 3: Cross multiply
1,372,005.56x = 1,893,367.68 × 768,393.56 - Step 4: Simplify right side
1,372,005.56x = 1,454,851,533,876.08 - Step 5: Solve for x
x = 1,454,851,533,876.08/1,372,005.56 - Step 6: Final answer
x = 1,060,383.12
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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.