Finding the Fourth Proportional to 380,828.95, 525,754.52 and 340,445.99
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Solution
The fourth proportional to 380,828.95, 525,754.52 and 340,445.99 is: 470,003.71
Step by Step Solution
- Step 1: Write the proportion equation
380,828.95 : 525,754.52 = 340,445.99 : x - Step 2: Convert to fraction form
380,828.95/525,754.52 = 340,445.99/x - Step 3: Cross multiply
380,828.95x = 525,754.52 × 340,445.99 - Step 4: Simplify right side
380,828.95x = 178,991,018,058.38 - Step 5: Solve for x
x = 178,991,018,058.38/380,828.95 - Step 6: Final answer
x = 470,003.71
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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.