Finding the Fourth Proportional to 747,943.52, 1,032,161.96 and 408,412.08
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Solution
The fourth proportional to 747,943.52, 1,032,161.96 and 408,412.08 is: 563,608.62
Step by Step Solution
- Step 1: Write the proportion equation
747,943.52 : 1,032,161.96 = 408,412.08 : x - Step 2: Convert to fraction form
747,943.52/1,032,161.96 = 408,412.08/x - Step 3: Cross multiply
747,943.52x = 1,032,161.96 × 408,412.08 - Step 4: Simplify right side
747,943.52x = 421,547,412,980.48 - Step 5: Solve for x
x = 421,547,412,980.48/747,943.52 - Step 6: Final answer
x = 563,608.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.