Finding the Fourth Proportional to 1,979,564.58, 2,969,345.79 and 717,390.18
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Solution
The fourth proportional to 1,979,564.58, 2,969,345.79 and 717,390.18 is: 1,076,084.88
Step by Step Solution
- Step 1: Write the proportion equation
1,979,564.58 : 2,969,345.79 = 717,390.18 : x - Step 2: Convert to fraction form
1,979,564.58/2,969,345.79 = 717,390.18/x - Step 3: Cross multiply
1,979,564.58x = 2,969,345.79 × 717,390.18 - Step 4: Simplify right side
1,979,564.58x = 2,130,179,510,770.34 - Step 5: Solve for x
x = 2,130,179,510,770.34/1,979,564.58 - Step 6: Final answer
x = 1,076,084.88
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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.