Finding the Fourth Proportional to 538,352.78, 742,959.99 and 296,635.28
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Solution
The fourth proportional to 538,352.78, 742,959.99 and 296,635.28 is: 409,374.95
Step by Step Solution
- Step 1: Write the proportion equation
538,352.78 : 742,959.99 = 296,635.28 : x - Step 2: Convert to fraction form
538,352.78/742,959.99 = 296,635.28/x - Step 3: Cross multiply
538,352.78x = 742,959.99 × 296,635.28 - Step 4: Simplify right side
538,352.78x = 220,388,140,947.65 - Step 5: Solve for x
x = 220,388,140,947.65/538,352.78 - Step 6: Final answer
x = 409,374.95
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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.