Finding the Fourth Proportional to 738,341.47, 1,107,547.41 and 358,810.05
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Solution
The fourth proportional to 738,341.47, 1,107,547.41 and 358,810.05 is: 538,232.17
Step by Step Solution
- Step 1: Write the proportion equation
738,341.47 : 1,107,547.41 = 358,810.05 : x - Step 2: Convert to fraction form
738,341.47/1,107,547.41 = 358,810.05/x - Step 3: Cross multiply
738,341.47x = 1,107,547.41 × 358,810.05 - Step 4: Simplify right side
738,341.47x = 397,399,134,227.68 - Step 5: Solve for x
x = 397,399,134,227.68/738,341.47 - Step 6: Final answer
x = 538,232.17
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1.5x scale
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.