Finding the Fourth Proportional to 692,889.31, 1,039,363.08 and 338,201.65
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Solution
The fourth proportional to 692,889.31, 1,039,363.08 and 338,201.65 is: 507,316.69
Step by Step Solution
- Step 1: Write the proportion equation
692,889.31 : 1,039,363.08 = 338,201.65 : x - Step 2: Convert to fraction form
692,889.31/1,039,363.08 = 338,201.65/x - Step 3: Cross multiply
692,889.31x = 1,039,363.08 × 338,201.65 - Step 4: Simplify right side
692,889.31x = 351,514,308,605.08 - Step 5: Solve for x
x = 351,514,308,605.08/692,889.31 - Step 6: Final answer
x = 507,316.69
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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.