Finding the Fourth Proportional to 870,873.20, 1,306,392.24 and 338,435.30
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Solution
The fourth proportional to 870,873.20, 1,306,392.24 and 338,435.30 is: 507,684.99
Step by Step Solution
- Step 1: Write the proportion equation
870,873.20 : 1,306,392.24 = 338,435.30 : x - Step 2: Convert to fraction form
870,873.20/1,306,392.24 = 338,435.30/x - Step 3: Cross multiply
870,873.20x = 1,306,392.24 × 338,435.30 - Step 4: Simplify right side
870,873.20x = 442,129,249,662.07 - Step 5: Solve for x
x = 442,129,249,662.07/870,873.20 - Step 6: Final answer
x = 507,684.99
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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.