Finding the Fourth Proportional to 551,743.09, 761,473.49 and 310,020.41
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Solution
The fourth proportional to 551,743.09, 761,473.49 and 310,020.41 is: 427,866.39
Step by Step Solution
- Step 1: Write the proportion equation
551,743.09 : 761,473.49 = 310,020.41 : x - Step 2: Convert to fraction form
551,743.09/761,473.49 = 310,020.41/x - Step 3: Cross multiply
551,743.09x = 761,473.49 × 310,020.41 - Step 4: Simplify right side
551,743.09x = 236,072,319,766.56 - Step 5: Solve for x
x = 236,072,319,766.56/551,743.09 - Step 6: Final answer
x = 427,866.39
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1.5x scale
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.