Finding the Fourth Proportional to 726,743.10, 1,090,762.65 and 426,848.70
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Solution
The fourth proportional to 726,743.10, 1,090,762.65 and 426,848.70 is: 640,653.65
Step by Step Solution
- Step 1: Write the proportion equation
726,743.10 : 1,090,762.65 = 426,848.70 : x - Step 2: Convert to fraction form
726,743.10/1,090,762.65 = 426,848.70/x - Step 3: Cross multiply
726,743.10x = 1,090,762.65 × 426,848.70 - Step 4: Simplify right side
726,743.10x = 465,590,619,161.06 - Step 5: Solve for x
x = 465,590,619,161.06/726,743.10 - Step 6: Final answer
x = 640,653.65
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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.