Finding the Fourth Proportional to 1,078,323.36, 1,617,723.18 and 320,226.54
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Solution
The fourth proportional to 1,078,323.36, 1,617,723.18 and 320,226.54 is: 480,410.53
Step by Step Solution
- Step 1: Write the proportion equation
1,078,323.36 : 1,617,723.18 = 320,226.54 : x - Step 2: Convert to fraction form
1,078,323.36/1,617,723.18 = 320,226.54/x - Step 3: Cross multiply
1,078,323.36x = 1,617,723.18 × 320,226.54 - Step 4: Simplify right side
1,078,323.36x = 518,037,896,609.20 - Step 5: Solve for x
x = 518,037,896,609.20/1,078,323.36 - Step 6: Final answer
x = 480,410.53
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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.