Finding the Fourth Proportional to 1,321,722.04, 1,979,509.11 and 1,285,356.55
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Solution
The fourth proportional to 1,321,722.04, 1,979,509.11 and 1,285,356.55 is: 1,925,045.45
Step by Step Solution
- Step 1: Write the proportion equation
1,321,722.04 : 1,979,509.11 = 1,285,356.55 : x - Step 2: Convert to fraction form
1,321,722.04/1,979,509.11 = 1,285,356.55/x - Step 3: Cross multiply
1,321,722.04x = 1,979,509.11 × 1,285,356.55 - Step 4: Simplify right side
1,321,722.04x = 2,544,375,000,323.17 - Step 5: Solve for x
x = 2,544,375,000,323.17/1,321,722.04 - Step 6: Final answer
x = 1,925,045.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.