Finding the Fourth Proportional to 538,137.45, 742,305.83 and 344,587.05
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Solution
The fourth proportional to 538,137.45, 742,305.83 and 344,587.05 is: 475,322.75
Step by Step Solution
- Step 1: Write the proportion equation
538,137.45 : 742,305.83 = 344,587.05 : x - Step 2: Convert to fraction form
538,137.45/742,305.83 = 344,587.05/x - Step 3: Cross multiply
538,137.45x = 742,305.83 × 344,587.05 - Step 4: Simplify right side
538,137.45x = 255,788,974,434.57 - Step 5: Solve for x
x = 255,788,974,434.57/538,137.45 - Step 6: Final answer
x = 475,322.75
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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.