Finding the Fourth Proportional to 538,736.14, 742,683.12 and 423,815.05
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Solution
The fourth proportional to 538,736.14, 742,683.12 and 423,815.05 is: 584,256.85
Step by Step Solution
- Step 1: Write the proportion equation
538,736.14 : 742,683.12 = 423,815.05 : x - Step 2: Convert to fraction form
538,736.14/742,683.12 = 423,815.05/x - Step 3: Cross multiply
538,736.14x = 742,683.12 × 423,815.05 - Step 4: Simplify right side
538,736.14x = 314,760,281,928.78 - Step 5: Solve for x
x = 314,760,281,928.78/538,736.14 - Step 6: Final answer
x = 584,256.85
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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.