Finding the Fourth Proportional to 991,803.10, 1,490,815.05 and 973,140.70
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Solution
The fourth proportional to 991,803.10, 1,490,815.05 and 973,140.70 is: 1,462,762.92
Step by Step Solution
- Step 1: Write the proportion equation
991,803.10 : 1,490,815.05 = 973,140.70 : x - Step 2: Convert to fraction form
991,803.10/1,490,815.05 = 973,140.70/x - Step 3: Cross multiply
991,803.10x = 1,490,815.05 × 973,140.70 - Step 4: Simplify right side
991,803.10x = 1,450,772,801,327.54 - Step 5: Solve for x
x = 1,450,772,801,327.54/991,803.10 - Step 6: Final answer
x = 1,462,762.92
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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.