Finding the Fourth Proportional to 538,119.76, 742,638.99 and 296,402.26
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Solution
The fourth proportional to 538,119.76, 742,638.99 and 296,402.26 is: 409,053.69
Step by Step Solution
- Step 1: Write the proportion equation
538,119.76 : 742,638.99 = 296,402.26 : x - Step 2: Convert to fraction form
538,119.76/742,638.99 = 296,402.26/x - Step 3: Cross multiply
538,119.76x = 742,638.99 × 296,402.26 - Step 4: Simplify right side
538,119.76x = 220,119,875,000.12 - Step 5: Solve for x
x = 220,119,875,000.12/538,119.76 - Step 6: Final answer
x = 409,053.69
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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.